A method for starting an electrolysis system is disclosed. A supply circuit has an AC terminal connected to an AC grid, a DC terminal connected to an electrolyzer, and an AC/DC converter arranged between the AC terminal and the DC terminal. The method includes charging an output capacitor connected to a DC converter terminal of the AC/DC converter, by operating the electrolyzer in a reverse mode, while the AC/DC converter is connected to the electrolyzer and disconnected from the AC grid, connecting the AC/DC converter to the AC grid, reversing the operation of the electrolyzer from the reverse mode to a normal mode as a DC load, to suppress a power flow between the AC grid and the electrolyzer, and operating the electrolyzer in the normal mode with electrical power drawn from the AC grid which is rectified by the AC/DC converter.
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
C25B 9/65 - Dispositifs pour l'alimentation en courant; Connexions d'électrodes; Connexions électriques intercellulaires
C25B 15/02 - Commande ou régulation des opérations
C25B 15/06 - Détection ou prévention des courts-circuits dans les cellules
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 7/219 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs dans une configuration en pont
2.
ELECTROLYSIS DEVICE HAVING A CONVERTER AND METHOD FOR PROVIDING INSTANTANEOUS RESERVE POWER FOR AN AC VOLTAGE GRID
A method for operating an electrolysis device, having a converter which is connected on an AC voltage side to an AC voltage grid via a decoupling inductance and draws an AC active power from the AC voltage grid, and an electrolyzer, which is connected to the converter on the DC voltage side, is provided. The method includes operating the electrolysis device, when a grid frequency corresponds to a nominal frequency of the ACT voltage grid and is substantially constant over a time period, with an electrical power which is between 50% and 100% of a nominal power of the electrolyzer, and operating the converter in a voltage-impressing manner, such that an AC active power drawn from the AC voltage grid is changed on the basis of a change and/or a rate of change of the grid frequency in the AC voltage grid.
A busbar for measuring a direct and/or alternating current has connection regions and at least one resistance region arranged between the connection regions, and two measuring contacts arranged in the resistance region. The busbar has a geometry in which the measuring contacts are currentless during operation of the busbar. The busbar is formed in one piece. An apparatus for determining current and having such a busbar and a power converter having such an apparatus are also disclosed.
G01R 1/20 - Modifications des éléments électriques fondamentaux en vue de leur utilisation dans des appareils de mesures électriques; Combinaisons structurelles de ces éléments avec ces appareils
G01R 15/14 - Adaptations fournissant une isolation en tension ou en courant, p.ex. adaptations pour les réseaux à haute tension ou à courant fort
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
The invention relates to a control method for operating an inverter in a power network that is connected to a power supply network via a controllable disconnecting switch. The method comprises the steps, while the disconnecting switch is closed, of operating the inverter in a current-impressing mode, and constantly monitoring the power supply network for a voltage drop. In the event of a voltage drop in the power supply network being detected, the method causes the operating mode of the inverter to be changed to a voltage-setting mode, wherein a provisional voltage that is reduced relative to the normal network voltage is set by the inverter. After a predefined period of time has elapsed after detection of the voltage drop, if the voltage drop in the power supply network persists, the method comprises opening the disconnecting switch and increasing the voltage set by the inverter to the normal network voltage, and, after a predefined period of time has elapsed after detection of the voltage drop, if the failure of the power supply network does not persist, operating the inverter in the current-impressing mode.
H02J 3/12 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau
H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p.ex. charge équilibrée progressivement
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
5.
VOLTAGE-ADJUSTING INVERTER, AND ENERGY-GENERATING PLANT
d, solld, istdd, solld, ist00) by the determined frequency shift. An outer control loop of the inverter is designed to, in an isolated network mode, supply a setpoint value signal to the setpoint value input in accordance with the determined frequency shift. Also provided is an energy-generating plant, which may comprise two such inverters.
H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs
H02J 3/48 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs contrôlant la répartition de la composante en phase
H02M 7/493 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande les convertisseurs statiques étant agencés pour le fonctionnement en parallèle
6.
PHOTOVOLTAIC SYSTEM WITH SAFETY DEACTIVATION FUNCTION
maxmax of a substring (10) is lower than a specified danger threshold. The shut-off device (12) is designed to separate a substring (10) from the DC wiring strand (13) after receiving a shut-off signal by means of the power semiconductor switch (18). The invention additionally relates to an assembly comprising a shut-off device (12) and a substring (10) and to an energy generating system.
A method for logging a user into a device for a power generation plant, using a service gateway, wherein an access authorization of the user for the device is stored on the service gateway, is disclosed. The method includes authenticating the user on the service gateway, sending a device access request using an access device from the user to the service gateway specifying an identifier of the device for the power generation plant, and comparing a device secret stored on the service gateway with a copy of the device secret generated using the device secret and stored on the device, via an SRP protocol.
H04L 9/32 - Dispositions pour les communications secrètes ou protégées; Protocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système
8.
PLATFORM FOR SPACE-SAVING CONFIGURATION OF AN ENERGY CONVERSION INSTALLATION, AND ENERGY CONVERSION INSTALLATION
The disclosure relates to a platform stack for the space-saving configuration of an energy conversion installation, comprising at least two platforms stacked one over another to form the platform stack, wherein each of the platform is configured to position a skid with a respective converter unit of the energy conversion installation such that they are stacked one on top of the other on via the two platforms. The platforms each include a frame structure having a storage surface for the skid, and have alignment elements on a first side and support posts on a second side of the frame structure, opposite the first side.
The invention relates to a method for reducing a current circuit in inverters (WR1, WR2,... WRn) which are connected together in parallel on the DC side and on the AC side and each of which comprises a divided intermediate circuit. The method has the following steps for at least one inverter: - measuring a first and a second intermediate circuit voltage (u_Z+, u_Z-) of a first or second half of the divided intermediate circuit of the respective inverter (WR1, WR2,... WRn), - measuring an AC-side differential current (i_di, i_di1, i_di2,... i_din) of the respective inverter (WR1, WR2,... WRn), - ascertaining the duty cycle (DuCy) in order to adjust an AC-side output voltage of the respective inverter (WR1, WR2,... WRn) according to an AC target voltage using the intermediate circuit voltages (u_Z+, u_Z-) and the AC-side differential current (i_di), and - adjusting the AC-side output voltage by actuating semiconductor switches of the respective inverter (WR1, WR2,... WRn) using the duty cycle (DuCy). The invention additionally relates to a device (10) for producing a current circuit, to an inverter (WR1, WR2,... WRn), and to a system comprising a plurality of inverters.
H02M 7/483 - Convertisseurs munis de sorties pouvant chacune avoir plus de deux niveaux de tension
H02M 7/493 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande les convertisseurs statiques étant agencés pour le fonctionnement en parallèle
The invention relates to a bridge circuit (10) for providing an alternating current at a phase terminal (AC) having a first direct current terminal (DC+) and a second direct current terminal (DC-) for connecting a direct current source or a direct current load, an intermediate circuit (17), and a bridge (11) with bridge switches, which bridge is configured to provide potentials at the direct current terminals (DC+, DC-) at a first bridge output (18a) and a second bridge output (18b) which are clocked independently of one another. A first connection path (15a) and a second connection path extend between the respective bridge outputs (18a) and the phase terminal (AC), wherein each of the connection paths (18a, 18b) has, on the bridge output side, a filter choke (12a, 12b) and the filter chokes (12a, 12b) of the connection paths (15a, 15b) are magnetically coupled to one another. A cut-off relay (13) with a plurality of relay contacts (14) is arranged between the bridge outputs (18a, 18b) and the phase terminal (AC) in such a manner that in each cut-off portion of the connection paths (15a, 15b) at least one of the relay contacts (14) is arranged in each of the connection paths (15a, 15b). Furthermore, the invention relates to an energy conversion system with such a bridge circuit (10).
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
H02M 7/483 - Convertisseurs munis de sorties pouvant chacune avoir plus de deux niveaux de tension
The invention describes a device (1) for the voltage equalisation of a plurality n of at least two (n≥2) two-terminal networks (P1, P2, P3). The device comprises a current-limiting component (10) with an input (10.1) and an output (10.2), and n connection pairs (A) each having a first connection (A1) and a second connection (A2) for connecting the n two-terminal networks (P1, P2, P3). Two or more of the first connections (A1) are each connected to the input (10.1) via a first switch (S1) or directly. In addition, two or more of the first connections (A1) are each connected to the output (10.2) via a second switch (S2). The second connections (A2) are connected to a common reference potential GND or are connected in a switchable manner. The device (1) is designed to set switching states of the first switch (S1) and of the second switch (S2) by means of a control unit (9) and/or by means of voltages applied to the first connections (A1) in such a manner that the current-limiting component (10) consumes power in its input (10.1) and not in its output (10.2), and the current-limiting component (10) outputs power from its output (10.2) and not its input (10.1). The invention also describes a method for the voltage equalisation of n two-terminal networks (P1, P2, P3) that can be carried out with the device (1), and a DC power distribution system.
The invention relates to a method for operating a power converter comprising a power electronics circuit, which comprises at least one semiconductor switch, wherein an adjustable transmission ratio between voltages and/or currents is generated at connections on a first side of the switch and on a second side of the switch by means of clocked control of the at least one semiconductor switch, wherein the control of the at least one semiconductor switch comprises a control signal with a clock frequency and an adjustable duty factor, wherein the duty factor has a value in a first value range or in a second value range, wherein the first value range comprises two end values and extends between a minimum value greater than zero and a maximum value less than one, and the second value range comprises the values zero and/or one. By means of an auxiliary variable having a third value range between minus one and one, a duty factor for generating the control signals is varied such that a transition from duty factors with values close to zero or close to one to values of zero or one is improved. A power converter with a control device is configured to carry out the method.
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
H02M 1/14 - Dispositions de réduction des ondulations d'une entrée ou d'une sortie en courant continu
H02M 7/5395 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p.ex. onduleurs à impulsions à un seul commutateur avec commande automatique de la forme d'onde ou de la fréquence de sortie par modulation de largeur d'impulsions
13.
POWER CONVERTER, METHOD FOR OPERATING A POWER CONVERTER, AND SYSTEM COMPRISING A DC ENERGY SOURCE, A DC NETWORK AND A POWER CONVERTER
The invention relates to a power converter (10) for transmitting electrical power, said power converter comprising: a first side for connection to a DC energy source supply (20); and a second side for connection to a DC network (22), the power converter (10) having a DC/DC controller (12) and a first switching device (14). The DC/DC controller (12) is designed to exchange electrical power between the first and the second side, and the first switching device (14) is designed to connect the first side to the second side in a switchable manner via the DC/DC controller (12). The power converter (10) is designed to disconnect the connection via the first switching device (14) if the DC network (22) is intended for exchanging electrical power with an AC supply network (30), and to establish the connection via the first switching device (14) if no exchange of electrical power with the AC supply network (30) is intended for the DC network (22). The power converter (10) has: a third side for connection to the AC supply network (30); a DC/AC converter (16); and a second switching device (18), wherein the DC/AC converter (16) in conjunction with the DC/DC controller (12) is intended to exchange electrical power between the first side and the third side and the second switching device (18) is designed to connect the third side to the first side in a switchable manner via the DC/AC converter (16) and the DC/DC controller (12).
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p.ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
H02J 1/14 - Circuits pour réseaux principaux ou de distribution, à courant continu Équilibrage de la charge dans un réseau
The application describes operating an inverter having an AC connection, a DC connection and an inverter bridge therebetween. The operation includes operating the inverter in a first mode in which, at the AC connection, an AC grid is supplied with electrical power via the inverter, and the voltage of the AC grid is controlled via a regulation of the inverter. If an increase in a current at the AC connection exceeds a current limit value: changing to a second mode and operating the inverter, wherein a regulation is adapted such that, via a virtual impedance, it limits the current at the AC connection.
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 7/797 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu; Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif avec possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
15.
METHOD AND DEVICE FOR MEASURING AN INSULATION RESISTANCE OF A DC VOLTAGE SOURCE CONNECTED TO A SPLIT INTERMEDIATE CIRCUIT IN MAINS PARALLEL OPERATION
To measure an insulation resistance of a DC voltage source connected to a split intermediate circuit, a midpoint potential of the DC voltage source is shifted by different operation of two voltage converters by way of which two poles of the DC voltage source are each connected to one of two parts of the split intermediate circuit. A change in a residual current across all lines that carry a current flowing across the intermediate circuit from the DC voltage source, resulting from the shifting of the midpoint potential of the DC voltage source, is measured.
G01R 27/02 - Mesure de résistances, de réactances, d'impédances réelles ou complexes, ou autres caractéristiques bipolaires qui en dérivent, p.ex. constante de temps
G01R 27/10 - Mesure de la résistance par mesure à la fois de la tension et de l'intensité en utilisant des instruments à deux bobines ou à bobines croisées pour former un quotient
The application describes a transfer circuit or system with a first DC bus for connecting a plurality of battery racks to an inverter bridge for a first power exchange with an AC grid. The transfer circuit or system has a second DC bus which is connected to the first DC bus via a DC/DC converter. The transfer circuit or system is arranged to disconnect at least one battery rack of the plurality of battery racks from the first DC bus and to connect it to the second DC bus for performing an intra-battery equalization process. The application also describes a system with a transfer unit and a method for performing an intra-battery equalization process.
The invention relates to a method for producing a defined state of an electrochemical system (14) which can be connected to an AC/DC converter (12) via a switch disconnector (TS) of a disconnecting device (20) in order to exchange electric power, wherein at least one DC connection (DC+, DC-) of the electrochemical system (14) is connected to the AC/DC converter via the disconnector switch (TS) of the disconnecting device (20). The method has the following step: in a first operating state in which the at least one DC connection (DC+, DC-) is electrically disconnected from the AC/DC converter (12): a) a first switch (S1) of the disconnecting device (20) is closed in order to produce an electric connection between the DC connections (DC+, DC-) of the electrochemical system. The invention additionally relates to a disconnecting device, to a power converter comprising such a disconnecting device, and to an assembly comprising an electrochemical system (14) and such a power cconverter.
H01M 8/04228 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides pendant le démarrage ou l’arrêt; Dépolarisation ou activation, p.ex. purge; Moyens pour court-circuiter les éléments à combustible défectueux pendant l’arrêt
The invention relates to a method for increasing the service life of converter switches (Q1, Q2, Q3, Q4) in a system (10) comprising an energy source (PV) which is connected to a DC bus (DC+, DC-) together with a DC-to-DC converter (12) comprising the converter switches (Q1, Q2, Q3, Q4). The method comprises the steps of: • establishing a system state in which electrical power of the energy source (PV) is available for which no transmission via the DC-to-DC converter (12) and no output to further participants of the DC bus (DC+, DC-) is provided, and • operating the DC-to-DC converter (12) during the established system state such that power dissipation is generated in the DC-to-DC converter (12) without power being transmitted via the DC-to-DC converter (12). The invention also relates to: a system comprising an energy source (PV) and a DC-to-DC converter having the converter switches (Q1, Q2, Q3, Q4); and an energy-generating system comprising such a system.
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p.ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02S 50/10 - Tests de dispositifs PV, p.ex. de modules PV ou de cellules PV individuelles
19.
METHOD FOR PRE-MAGNETIZING A MEDIUM VOLTAGE TRANSFORMER, CONTROL UNIT, AND ELECTROLYSIS SYSTEM
The invention relates to a method for pre-magnetizing a medium voltage transformer (T1) which is designed to carry out a voltage transformation between a medium voltage of a medium voltage grid (MVG) on a medium voltage side of the medium voltage transformer (T1) and a low voltage on a low-voltage side of the medium voltage transformer (T1) and which is connected to an electrolyzer (10) via a rectifier (12) on the low-voltage side. In a first operating state (BZ1), the medium voltage transformer (T1) is separated from the medium voltage grid (MVG), wherein at least one auxiliary assembly (20) of the electrolyzer (10) is supplied with electric energy via an additional energy supply in the first operating state (BZ1), and in the first operating state, the method has the steps of: A1) connecting the low-voltage side to the additional energy supply and A2) pre-magnetizing the medium voltage transformer (T1) using the additional energy supply. The invention additionally relates to a control unit (Ctrl) and an electrolysis system.
H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p.ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
H02J 3/40 - Synchronisation d'un générateur pour sa connexion à un réseau ou à un autre générateur
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p.ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
H02H 9/00 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion
An explosion-proof housing for a power electronics unit includes a housing pan and a cover that closes the housing pan via a seal, wherein the cover and the housing pan are pressed against each other at two opposing sides formed by edge regions of the cover and the housing pan via a plurality of fasteners that are configured to be released by rotation and that engage in latching structures. The plurality of fasteners are arranged in a central third of the respective sides. The explosion-proof housing can be used, for example, for a photovoltaic inverter.
H05K 5/02 - Enveloppes, coffrets ou tiroirs pour appareils électriques - Détails
H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu; Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif
H05K 5/00 - Enveloppes, coffrets ou tiroirs pour appareils électriques
1233 and is connected to the DC voltage output (16) via a second AC/DC converter. The primary side (2P) and the first secondary-side connection (2S1) of the first multi-winding transformer (2) or the primary side (2P) and the secondary side (2S) of the first multi-winding transformer (2) are in this case each free from any on-load tap changer. The invention additionally describes an electrolysis installation (50) having a corresponding energy supply device (10).
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
A housing of an electrical device for converting electrical power has a main body with a rear wall and side walls and a cover, wherein the cover closes the main body so that a self-contained interior space is created, wherein electrical and electronic components of the electrical device are arranged in the interior space of the housing. The cover is detachably connected to the main body by a cover closure, wherein the cover closure comprises a fastening means (15) and a closure housing (11), wherein the fastening means (15) is rotatably and axially non-displaceably retained in the closure housing (11). The closure housing (15) is fastened to the cover in the geometric centre of the cover. The main body comprises a pin (16) which extends from the rear wall of the housing to the geometric centre of the cover, wherein a connection between the cover and the pin (16) that is releasable by turning the fastening means (15) can be established by means of at least one guide peg (17) of the pin (16) and at least one at least partly helically encircling guide groove (20) of the fastening means (15).
The invention relates to a method for virtually subdividing an electrical energy store (20) in an energy supply system (10). The energy supply system (10) comprises: - a grid connection point (14) for connecting the energy supply system (10) to an external energy supply grid (12), - the electrical energy store (20), and - an internal circuit (22), which is connected to the electrical energy store (20), for connecting electrical loads, energy-generating units (32, 36, 52) and/or further electrical energy stores. The method comprises: - providing a virtual energy store having a capacitance corresponding to the energy store (20), - subdividing the virtual energy store into at least two separate virtual partial stores (42), - providing at least two virtual energy meters (44) which are each assigned to a virtual partial store (42), - receiving at least two target values for a virtual power exchange value for each virtual partial store (42), - adjusting the actual power exchange value of the energy store (20) on the basis of the sum of the at least two target values, - measuring the virtual power exchange values of the virtual partial stores (42) via the virtual energy meters (44) assigned in each case. The invention also relates to a control device (40) for virtually subdividing an electrical energy store (20), and to an energy supply system (10).
The disclosure describes a method for operating an energy supply installation which is connected to an AC supply grid via a transformer, and exchanges electrical power with the AC supply grid via the transformer. The transformer is connected on a first side to the AC supply grid and on a second side to an AC installation grid of the energy supply installation, wherein the energy supply installation has at least one inverter which exchanges electrical power between a DC unit on the DC side of the inverter and the AC installation grid on the AC side of the inverter. The method includes receiving at least one parameter of the power conversion of the at least one inverter by an installation controller, determining a setpoint AC voltage for the AC installation grid by the installation controller according to the parameter, transmitting the setpoint AC voltage to the transformer.
The invention relates to a fire protection device (1) for an energy store. The fire protection device has a housing (2) with at least one fluid-tight outer wall, a storage region (3) and a projection region (4), wherein the storage region (3) contains a fire protection agent, the projection region (4) has a plurality of projections (4a) which are fluidically connected to the storage region (3) and have a casing which is designed such that it melts at a melting temperature and thus allows the fire protection agent to flow out.
A62C 3/16 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers dans les installations électriques, p.ex. chemins de câbles
A62C 35/10 - Réservoirs se brisant ou s'ouvrant sous l'action des flammes ou de la chaleur
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules
H01M 50/609 - Moyens ou procédés pour le remplissage en liquide, p.ex. avec des électrolytes
H01M 50/682 - Récipients pour stockage de liquides; Conduits de refoulement à cet effet logés dans les boîtiers de la batterie ou de la cellule
26.
METHOD AND CIRCUIT ARRANGEMENT FOR ACQUIRING A CHARACTERISTIC CURVE OF A PV GENERATOR
The invention relates to a method for acquiring a characteristic curve of a PV generator (2) to be scanned from a plurality of PV generators (2) in a power generation system (10), wherein each of the PV generators (2) is connected, on the output side, via an assigned DC/DC converter (12) in parallel or as a series circuit, to a DC link (14) as the input element of a DC/AC converter (20). The method comprises: a) reducing a cumulative output power (KA) of those DC/DC converters (12), for which the associated PV generators (2) are not intended for acquiring the characteristic curve, as a function of a maximum output power (Pscan) of the DC/DC converter (12) connected to the PV generator (2) to be scanned to be expected during the acquisition of the characteristic curve of the PV generator (2) to be scanned, in order to ensure that the sum of the cumulative output power (KA) and the expected maximum power (Pscan) do not exceed a nominal power (PN) of the DC/AC converter (20), b) subsequently acquiring the characteristic curve of the PV generator (2) to be scanned, c) wherein during the acquisition of the characteristic curve, a voltage (UZK) of the DC link (14) or a current of the series circuit of the DC/DC converters (12) is held constant by the DC/AC converter (20). The application also relates to a circuit arrangement for acquiring a characteristic curve of a PV generator (2) to be scanned.
A power converter between an AC side and DC of the power converter is disclosed. The AC side is connected to an AC supply grid and the DC side is connected to a DC grid. The power converter includes a bridge circuit connected to the AC side of the power converter via AC switches and connected to the DC side of the power converter via circuit breakers, wherein a DC link circuit of the power converter is chargeable from the AC supply grid via an AC precharging circuit. The power converter has an insulation monitor to measure the insulation resistance of the DC side when the AC precharging circuit is connected to the DC link circuit. The disclosure also includes a related method.
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
H02M 7/04 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques
H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
28.
METHOD FOR BALANCING VOLTAGES IN A DC GRID AND BALANCING UNIT FOR A DC GRID
The application describes a method for balancing voltages on a first and a second DC conductor in a DC grid using a balancing circuit with a first and second semiconductor switch connected in series between the first and second DC conductors, and a connection to a ground potential that is arranged between the first and second semiconductor switches. In the presence of an asymmetry in the voltages of the first and second DC conductors to ground potential, a compensation current is generated between at least one of the DC conductors ground potential via at least one of the semiconductor switches, with the asymmetry in the voltages being reduced by the compensation current (IA), with the voltages of the DC conductors to ground potential being balanced.
H02J 1/14 - Circuits pour réseaux principaux ou de distribution, à courant continu Équilibrage de la charge dans un réseau
H02M 3/155 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
29.
METHOD FOR OPERATING A DC VOLTAGE GRID AND POWER CONVERTER FOR CONNECTING A DC VOLTAGE GRID TO AN AC VOLTAGE GRID
An electrical system includes a power converter and a DC/DC converter configured to transfer power between an AC side and a DC side thereof. The AC side is connected to an AC supply grid and the DC side is connected to a DC grid. The power converter has a bridge circuit connected to the AC side of the power converter via AC relays and connected to the DC side of the power converter via circuit breakers. A measuring device measures a DC power converter voltage and a DC/DC output voltage present on the output side of the DC/DC converter. A control circuit is configured to drive the DC/DC converter. The application also describes a method for operating an electrical system.
H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
H02M 7/44 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques
H02M 3/04 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques
30.
ISLAND NETWORK DETECTION, VOLTAGE-IMPRESSING CONVERTER, AND CONVERTER
The invention relates to an island network detection method using a voltage-impressing converter (14), having the steps of: - determining the frequency and the phase of a voltage curve of a sub-network (10) which is connected to a network connection point of the converter (14), - generating a voltage curve using a bridge circuit of the converter (14) with the specified frequency, the phase of the generated voltage curve having a first temporal variation with respect to the determined phase, - determining a correlation between the first temporal variation and a second temporal variation of an output exchanged by the converter (14) with the sub-network (10), and - detecting an island network if the determined correlation undershoots a specified correlation measurement. The invention likewise relates to a corresponding voltage-impressing converter (14).
A method for defining authentication data of a user at an energy conversion device connected to a grid and a source via a network connection includes receiving at the energy conversion device, via the network connection, a request from the user to newly assign authentication data, receiving at the energy conversion device desired authentication data of the user via the network connection, and storing the desired authentication data in the energy conversion device for an authentication of the user in the event of subsequent attempts to access the energy conversion device, when the energy conversion device is disconnected from the connected grid within a first predefined time window after receiving the request.
A method for operating a hybrid rectifier includes an AC input, a DC output and a thyristor rectifier arranged in a first path, and a transistor rectifier arranged in a second, parallel path. The method includes when a DC voltage at the DC output of the hybrid rectifier is below a voltage threshold value, operating the hybrid rectifier in a first operating state in which the transistor rectifier is isolated from the DC output and connected to the AC input and the thyristor rectifier is connected both to the AC input and to the DC output. When the DC voltage at the DC output of the hybrid rectifier reaches or exceeds the voltage threshold value, operating the hybrid rectifier in a second operating state in which the thyristor rectifier and the transistor rectifier are each connected to the AC input and to the DC output.
H02M 7/23 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs agencés pour la marche en parallèle
H02M 7/17 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type thyratron ou thyristor exigeant des moyens d'extinction utilisant uniquement des dispositifs à semi-conducteurs agencés pour la marche en parallèle
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
H02J 3/16 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par réglage de puissance réactive
C25B 9/65 - Dispositifs pour l'alimentation en courant; Connexions d'électrodes; Connexions électriques intercellulaires
33.
METHOD FOR SELF-TESTING OF A PHASE OF A 3-LEVEL ANPC CONVERTER WITH LC FILTER
A method for testing an inverter having a bridge comprising a first switch (T1) arranged between a positive connection (DC+) of a divided link circuit, having a center point (M), and a positive inner connection (PI), a second switch (T2) arranged between the positive inner connection (PI) and a bridge output (BR), a third switch (T3) arranged between the bridge output (BR) and a negative inner connection (NI), a fourth switch (T4) arranged between the negative inner connection (NI) and a negative connection (DC−) of the divided link circuit, a fifth switch (T5) arranged between the center point (M) and the positive inner connection (PI), and a sixth switch (T6) arranged between the center point (M) and the negative inner connection (NI) is disclosed. A grid filter having a filter inductor (LF) and a filter capacitor (CF) is connected to the bridge output (BR). The method comprises applying a link circuit voltage to the divided link circuit, while the bridge output (BR) is isolated from a connected grid using the connected grid filter, fully discharging the filter capacitor (CF), closing the first switch (T1) and the sixth switch (T6), while the fourth switch (T4) and the fifth switch (T5) are open, subsequently clocking the second switch (T2) using a plurality of short pulses, wherein the duty cycle of the short pulses is predetermined between 1% and 5%, subsequently to the clocking determining a voltage dropped across the filter capacitor (CF) and identifying a fault state of the bridge when the voltage dropped is outside of a voltage window with an upper window limit and a lower window limit. An inverter is also disclosed, which has a control system designed and set up to execute the method according to one of the preceding claims and to connect the inverter to a connected grid only if a fault state is not identified.
G01R 31/42 - Tests d'alimentation d'alimentations en courant alternatif
H02M 7/537 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p.ex. onduleurs à impulsions à un seul commutateur
The disclosure relates to a device for electrolysis from photovoltaically generated DC power, including an electrolyzer and a DC/DC converter. The DC/DC converter is configured to feed DC power to the electrolyzer via a DC bus, wherein: the DC power is generated by a photovoltaic (PV) sub-generator connected to the DC/DC converter. The PV sub-generator is connected to the DC/DC converter via a first disconnector that is coupled to an isolation monitoring structure in such a way that closure of the first disconnector requires a successful check for sufficient isolation of the PV sub-generator. The PV sub-generator has a main string and a second disconnector arranged between the main string and the first disconnector. The second disconnector is coupled to a fault current monitoring circuit of the main string in such a way that the second disconnector is opened in the event that a predefinable limit value of the fault current is exceeded. The disclosure also relates to a method.
H02H 7/20 - Circuits de protection de sécurité spécialement adaptés pour des machines ou appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou ligne, et effectuant une commutation automatique dans le cas d'un chan pour équipement électronique
H02H 1/00 - CIRCUITS DE PROTECTION DE SÉCURITÉ - Détails de circuits de protection de sécurité
H02S 40/36 - Composants électriques caractérisés par des moyens d'interconnexions électriques spéciaux entre plusieurs modules PV, p.ex. connexion électrique module à module
H02S 50/10 - Tests de dispositifs PV, p.ex. de modules PV ou de cellules PV individuelles
35.
DEVICE AND METHOD FOR CONVERTING ELECTRICAL ENERGY
The invention relates to a device (10) for converting electrical energy between a PV generator (12) and an electrolyser (14), wherein the device has a first side for connecting a PV generator (12) and a second side for connecting an electrolyser (14). The device has an inverter (16) arranged between the first side and a transformer (18), and an active rectifier (20) arranged between the transformer (18) and the second side, such that an AC side of the rectifier (20) and an AC side of the inverter (16) are connected to one another via the transformer (18), wherein the inverter (16) is designed to convert a first DC voltage on the DC side of the inverter (16) into a first AC voltage on the AC side of the inverter (16), wherein the rectifier (20) is designed to convert a second AC voltage on the AC side of the rectifier (20) into a second DC voltage on the DC side of the rectifier (20), wherein the device (10) has a controller which is designed to influence a power flow between the first side and the second side of the device from a connected PV generator (12) to a connected electrolyser (14) by adjusting an AC/DC transformation ratio of the rectifier (20) between the second AC voltage and the second DC voltage. The invention also relates to methods for converting electrical energy.
In a method for operating a power supply plant having a plurality of inverters and a plant controller connected to the inverters for communication, the power supply plant has a grid connection, which is connected to an AC voltage grid. Via the grid connection, the inverters exchange electrical interchange powers with the AC voltage grid such that the power supply plant exchanges a total interchange power, composed of the respective electrical interchange powers, with the AC voltage grid. By means of a respective regulator, the inverters adjust their respective interchange powers depending on a respective deviation of a voltage profile of a grid voltage from a respective reference profile with respect to a respective reference frequency and/or depending on a respective voltage amplitude differential between a respective grid voltage and a respective reference voltage. The plant controller influences the regulators of the inverters depending on a power differential between the total interchange power and a specified interchange power. A power supply plant according to the application is designed to carry out this method.
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
H02J 3/16 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par réglage de puissance réactive
G05B 19/042 - Commande à programme autre que la commande numérique, c.à d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
37.
METHOD FOR SETTING A POWER CLASS OF AN INVERTER, AND INVERTER
The disclosure relates to a method for setting a power class of an inverter, wherein the inverter has a device type plate containing information about the inverter which is device-specific and independent of the selected power class, and wherein the inverter has a class plate which is selected from a plurality of power class-specific class plates each assigned to one power class from a plurality of power classes and contains information about the assigned power class. The method includes capturing an image of the device type plate and the class plate and reading out the device-specific information and the information about the assigned power class from the data captured as an image,—transferring a setting sequence to the inverter, wherein the setting sequence has the information about the assigned power class,—setting the power class of the inverter using the setting sequence following authentication of the read-out information. The disclosure also relates to an inverter having a power class that can be set.
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p.ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseau; Circuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p.ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
G06V 10/94 - Architectures logicielles ou matérielles spécialement adaptées à la compréhension d’images ou de vidéos
G06V 40/10 - Corps d’êtres humains ou d’animaux, p.ex. occupants de véhicules automobiles ou piétons; Parties du corps, p.ex. mains
H04L 9/32 - Dispositions pour les communications secrètes ou protégées; Protocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système
09 - Appareils et instruments scientifiques et électriques
35 - Publicité; Affaires commerciales
36 - Services financiers, assurances et affaires immobilières
37 - Services de construction; extraction minière; installation et réparation
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Apparatus and instruments for conducting, switching,
converting, storing, regulating and controlling of
electricity; apparatus and instruments for measuring and
analysing of electricity; software for the energy sector;
mobile apps for the energy sector; electrical indicators for
use in the energy sector; data processing apparatus for use
in the energy sector; inverters; photovoltaic installation
for generating energy; systems, apparatus and instruments
for the production and/or storage of electrical energy,
hydrogen or alternative sources of electrical energy. Direct marketing in the energy sector; negotiation and
conclusion of commercial transactions for third parties in
the energy sector; compiling trade information in the energy
sector; sales promotion in the energy sector; arranging of
contractual trade services with third parties in the energy
sector; advising on the execution of commercial contracts in
the energy sector; procurement of contracts for others for
the purchase and sale of goods and the provision of services
in the energy sector; demonstration of goods for promotional
purposes in the energy sector; presentations of goods and
services in the energy sector; advisory services relating to
commercial transactions in the energy sector; retail
services, including via the internet, related to products
and services for the energy sector; assistance and
consultancy services with regard to business management of
companies in the energy sector; organisational and business
consulting in the creation of solution packages in the field
of energy management; writing of business project studies in
the energy sector; business project management services in
the energy sector; business project management in the energy
sector. Financial project management in the energy sector; project
financing in the energy sector; financial advice and
consultancy services in the energy sector; arranging the
provision of finance in the energy sector; consultancy
concerning financing of energy projects; financial
consultancy service in the energy sector; brokerage of
financial investments in energy companies; consultancy
services relating to the financing of civil works and
infrastructure projects relating to the energy sector. Installation services of equipment, installations, apparatus
and instruments in the energy sector; maintenance work of
equipment, installations, apparatus and instruments in the
energy sector; repair work of equipment, installations,
apparatus and instruments in the energy sector; assembly
work of equipment, installations, apparatus and instruments
in the energy sector; cleaning services in the energy
sector; laying of cable; installation, maintenance and
repair of energy-saving devices, installation, apparatus and
instruments; installation, maintenance and repair of power
generation equipment, installations, apparatus and
instruments; project management in the energy sector
[construction supervision]. Energy production. Technical regulation and monitoring of energy systems in the
field of electrical energy; technical remote monitoring of
energy systems; recording data regarding energy consumption
in buildings; conducting measurements in the energy sector;
technical analysis in relation to energy supply, energy
production and energy use by third parties; technological
consulting in the energy sector; advisory services in the
field of energy saving, energy use and energy efficiency;
technical verification of the efficient use of energy;
technical advice on energy systems; technological analysis
in the energy sector; online computer services in the energy
sector, namely technical advice; engineering services for
energy supply systems; engineering services in the field of
energy technology; technical monitoring including management
of energy flows; operation of energy management systems,
namely technical monitoring and regulation of energy flows;
engineering project management services in the energy
sector; development, design, implementation, maintenance,
data back-up services and updates regarding software and
mobile apps in the energy sector; preparation of technical
project studies in the energy sector.
39.
METHOD FOR OPERATING A BATTERY CONVERTER, BATTERY CONVERTER AND SYSTEM
A described method for operating a battery converter in a system, in which, in addition to the battery converter, an inverter, which is connected to a grid, and a DC load are connected to a common intermediate circuit via a DC bus, includes: —controlling an exchange power of the battery converter using a battery, which is connected to the battery converter, depending on a voltage of the intermediate circuit in accordance with a converter characteristic curve, —identifying a decrease in the intermediate circuit voltage below a rectifying value of the permissible AC voltage of the grid connected to the inverter, and —if the decrease is identified, temporarily shifting the converter characteristic curve so that a maximum discharging power of the battery converter is reached at a value of the intermediate circuit voltage that is above or at the rectifying value. A battery converter, which is configured to carry out the method, and a system having such a battery converter are also described.
The disclosure relates to a housing for a power electronics device, including a tray for receiving power electronics components and a cover for placing on the tray so that a closed housing is formed. The cover is fixed on the tray by a plurality of fixing screws. At least one opening element is provided that is made of one of the fixing screws, each of which is guided through a sleeve with deformation structures. The sleeve is arranged between the screw head of the fixing screw and the housing such that a pressing force is exerted by the screw head between the cover and the tray via the sleeve. The deformation structures are designed such that under the effect of the force of an explosion that exceeds the pressing force, the sleeve is compressed in a manner defined by the deformation structures such that a gap with a specified width is formed between the cover and the tray.
The present invention discloses a system diagnosis method in an energy management system (1) for electrical energy and at least one additional form of energy. The method comprises the steps of: acquiring (S110; S310) actual values of one or more operating parameters by means of the system diagnosis; comparing (S120; S320) the actual values of the operating parameters with target values of the operating parameters by means of the system diagnosis in order to obtain a deviation; determining (S130; S330), by means of the system diagnosis, whether the deviation of the actual values of the operating parameters from the target values of the operating parameters exceeds a deviation threshold value; if the deviation exceeds the deviation threshold value, establishing (S140; S340, S350, S360, S361) that there is a malfunction and in what part of the energy management system (1) the malfunction occurs; assigning (S160; S370) the malfunction to predefined malfunction groups on the basis of the deviation of the one or more operating parameters; and producing (S170; S380) a notification signal. A corresponding energy management system (1) is also described.
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p.ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseau; Circuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p.ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
A modular electronic power converter is disclosed and includes a first housing, a second housing, and a coupling element. The coupling element is arranged between the housings and is connected to at least one of the housings via a detent connection.
H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti
H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu; Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif
43.
FILTER-CHOKE, PRODUCTION METHOD THEREOF AND ELECTRICAL DEVICE
The application discloses a filter-choke (10) to be used in an EMI filter comprising: - a closed magnetic core (20) having two core-legs (21, 22), wherein the magnetic core is configured to be assembled out of at least two core-segments (23), - at least two bobbins (30), each bobbin comprising a base flange (31) and a tubular section (32a, 32b) extending in perpendicular direction from the base flange (31), wherein the tubular section (32a, 32b) comprises an opening (33) for receiving one of the two core-legs (21, 22), - a coil (40) formed by an electric conductor (41) having multiple windings arranged around the tubular section (32a, 32b) of each bobbin (30), characterized, in that in an assembled state of the filter-choke (10), the bobbins (30) are arranged in a stacked manner, such that their openings (33) are aligned coaxially to each other, one of the core legs (21, 22) extending through the openings (33), and in that each bobbin (30) comprise at least two first fitting elements (35) arranged on opposite edges (34) of its base flange (31), wherein the first fitting elements (35) of the first bobbin (30) are configured to engage with the first fitting elements (35) of the adjacent second bobbin (30) for releasably fixing the two bobbins (30) together. The application further discloses a method for producing said filter-choke (10) as well as an electrical device comprising said filter-choke (10).
H01F 37/00 - Inductances fixes non couvertes par le groupe
H01F 5/02 - Bobines d'induction enroulées sur des supports non magnétiques, p.ex. mandrins
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre eux; Fixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 3/10 - Dispositions composites de circuits magnétiques
H01F 27/26 - Fixation des parties du noyau entre elles; Fixation ou montage du noyau dans l'enveloppe ou sur un support
An inverter includes a battery terminal configured to connect to an electrical storage unit, a load terminal configured to connect to at least one electrical-energy consumer, and a grid terminal configured to connect to a superordinate distribution grid. The inverter also includes a bidirectional inverter bridge connected to the battery terminal, a first switching circuit, and a second switching circuit. The first switching circuit is arranged between the bidirectional inverter bridge and the second switching circuit, and the second switching circuit is arranged between the first switching circuit and the grid terminal. The first switching circuit is configured to enter a first state without a holding current and to switch into a second state with a holding current, and the second switching circuit is configured to be switched over between the first and second states by a signal.
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p.ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
H02M 7/797 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu; Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif avec possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
09 - Appareils et instruments scientifiques et électriques
35 - Publicité; Affaires commerciales
36 - Services financiers, assurances et affaires immobilières
37 - Services de construction; extraction minière; installation et réparation
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
(1) Apparatus and instruments for conducting, switching, converting, storing, regulating and controlling of electricity; apparatus and instruments for measuring and analysing of electricity; software for the energy sector; mobile apps for the energy sector; electrical indicators for use in the energy sector; data processing apparatus for use in the energy sector; inverters; photovoltaic installation for generating energy; systems, apparatus and instruments for the production and/or storage of electrical energy, hydrogen or alternative sources of electrical energy. (1) Direct marketing in the energy sector; negotiation and conclusion of commercial transactions for third parties in the energy sector; compiling trade information in the energy sector; sales promotion in the energy sector; arranging of contractual trade services with third parties in the energy sector; advising on the execution of commercial contracts in the energy sector; procurement of contracts for others for the purchase and sale of goods and the provision of services in the energy sector; demonstration of goods for promotional purposes in the energy sector; presentations of goods and services in the energy sector; advisory services relating to commercial transactions in the energy sector; retail services, including via the internet, related to products and services for the energy sector; assistance and consultancy services with regard to business management of companies in the energy sector; organisational and business consulting in the creation of solution packages in the field of energy management; writing of business project studies in the energy sector; business project management services in the energy sector; business project management in the energy sector.
(2) Financial project management in the energy sector; project financing in the energy sector; financial advice and consultancy services in the energy sector; arranging the provision of finance in the energy sector; consultancy concerning financing of energy projects; financial consultancy service in the energy sector; brokerage of financial investments in energy companies; consultancy services relating to the financing of civil works and infrastructure projects relating to the energy sector.
(3) Installation services of equipment, installations, apparatus and instruments in the energy sector; maintenance work of equipment, installations, apparatus and instruments in the energy sector; repair work of equipment, installations, apparatus and instruments in the energy sector; assembly work of equipment, installations, apparatus and instruments in the energy sector; cleaning services in the energy sector; laying of cable; installation, maintenance and repair of energy-saving devices, installation, apparatus and instruments; installation, maintenance and repair of power generation equipment, installations, apparatus and instruments; project management in the energy sector [construction supervision].
(4) Energy production.
(5) Technical regulation and monitoring of energy systems in the field of electrical energy; technical remote monitoring of energy systems; recording data regarding energy consumption in buildings; conducting measurements in the energy sector; technical analysis in relation to energy supply, energy production and energy use by third parties; technological consulting in the energy sector; advisory services in the field of energy saving, energy use and energy efficiency; technical verification of the efficient use of energy; technical advice on energy systems; technological analysis in the energy sector; online computer services in the energy sector, namely technical advice; engineering services for energy supply systems; engineering services in the field of energy technology; technical monitoring including management of energy flows; operation of energy management systems, namely technical monitoring and regulation of energy flows; engineering project management services in the energy sector; development, design, implementation, maintenance, data back-up services and updates regarding software and mobile apps in the energy sector; preparation of technical project studies in the energy sector.
09 - Appareils et instruments scientifiques et électriques
35 - Publicité; Affaires commerciales
36 - Services financiers, assurances et affaires immobilières
37 - Services de construction; extraction minière; installation et réparation
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Apparatus and instruments for conducting, switching, converting, storing, regulating and controlling of electricity; apparatus and instruments for measuring and analyzing of electricity; recorded and downloadable software for the energy sector for monitoring, regulating, optimizing and controlling energy production, energy needs and energy consumption in the energy sector; recorded and downloadable mobile applications being software for the energy sector for monitoring, regulating, optimizing and controlling energy production, energy needs and energy consumption in the energy sector; electrical indicators for use in the energy sector for monitoring, regulating, optimizing and controlling electrical current flow; data processing apparatus for use in the energy sector; inverters; photovoltaic installation for generating energy, namely, solar modules for the production of electricity; systems, apparatus and instruments for the production and/or storage of electrical energy, hydrogen or alternative sources of electrical energy, namely accumulators, electric storage batteries, battery chargers, solar-powered rechargeable batteries and renewable battery system to provide backup power Direct marketing in the energy sector; negotiation and conclusion of commercial transactions for third parties in the energy sector; compiling trade information for business purposes in the energy sector; sales promotion in the energy sector; arranging of contractual trade services with third parties in the energy sector; advising for business purposes on the execution of commercial contracts in the energy sector; procurement of contracts for others for the purchase and sale of goods and the provision of services in the energy sector; demonstration of goods for promotional purposes in the energy sector; presentations of goods and services in the energy sector, namely, planning and conducting trade fairs, exhibitions and presentations for economic or advertising purposes; business advisory services relating to commercial transactions in the energy sector; retail services, including via the internet, related to products and services for the energy sector, namely, retail store services featuring apparatus and instruments for monitoring, regulating, optimizing and controlling energy production, energy needs and energy consumption in the energy sector; assistance and consultancy services with regard to business management of companies in the energy sector; business organizational and business consulting in the creation of solution packages in the field of energy management; writing of business project studies in the energy sector, namely, preparation and writing of business project studies in the nature of business analysis, information services and market research in the energy sector; business project management services in the energy sector; business project management in the energy sector Financial project management in the energy sector; project financing in the energy sector; financial advice and consultancy services in the energy sector; arranging the provision of finance in the energy sector; financial consultancy concerning financing of energy projects; financial consultancy service in the energy sector; Brokerage of financial investments in energy companies; financial consultancy services relating to the financing of civil works and infrastructure projects relating to the energy sector Installation services of equipment, installations, apparatus and instruments in the energy sector, namely, of renewable energy generation equipment, apparatus and instruments for conducting, switching, converting, storing, regulating and controlling of electricity, and apparatus and instruments for measuring and analyzing of electricity; maintenance work of equipment, installations, apparatus and instruments in the energy sector, namely, of renewable energy generation equipment including apparatus and instruments for conducting, switching, converting, storing, regulating and controlling of electricity and apparatus and instruments for measuring and analyzing of electricity; repair work of equipment, installations, apparatus and instruments in the energy sector, namely, of renewable energy generation equipment including apparatus and instruments for conducting, switching, converting, storing, regulating and controlling of electricity and apparatus and instruments for measuring and analyzing of electricity; assembly work of equipment, installations, apparatus and instruments in the energy sector, namely, of renewable energy generation equipment including apparatus and instruments for conducting, switching, converting, storing, regulating and controlling of electricity and apparatus and instruments for measuring and analyzing of electricity; cleaning services in the energy sector, namely, cleaning of renewable energy generation equipment including apparatus and instruments for conducting, switching, converting, storing, regulating and controlling of electricity and apparatus and instruments for measuring and analyzing of electricity; laying of cable; installation, maintenance and repair of energy-saving devices, installations, apparatus and instruments for energy production, energy needs and energy consumption in the energy sector; installation, maintenance and repair of power generation equipment, installations, apparatus and instruments; construction project management in the energy sector Energy production Technical electronic monitoring of energy systems in the field of electrical energy using computers, recorded and downloadable software, mobile applications or sensors; technical remote monitoring of energy systems to ensure proper functioning; recording data for others on optical, digital and magnetic media for electronic storage, namely, data regarding energy consumption in buildings; conducting measurements in the energy sector; technical analysis in relation to energy supply, energy production and energy use by third parties, namely, energy auditing; technological consulting in the energy sector; engineering advisory services in the field of energy saving, energy use and energy efficiency; technical verification of energy systems to improve the efficient use of energy; technological advice on energy systems, namely, advice in the fields of optimizing energy production, energy needs and energy consumption in the energy sector; technological analysis in the energy sector, namely, in the field of renewable energy sources, hydrogen and alternative sources of electrical energy; online computer services in the energy sector, namely, technological advice relating to optimizing energy production, energy needs and energy consumption in the energy sector; engineering services for energy supply systems; engineering services in the field of energy technology; technical monitoring of energy flows for optimizing energy flows and for quality control purposes; technical monitoring of energy flows for optimizing energy flows and for quality control purposes; engineering project management services in the energy sector; development, design, implementation, maintenance, electronic data back-up services and updates regarding software and mobile application software in the energy sector; preparation of technical project studies in the energy sector, namely, conducting engineering studies for optimizing energy production, energy needs and energy consumption in the energy sector
47.
METHOD FOR OPERATING AN ELECTROLYSER AND A FUEL CELL BY MEANS OF A COMMON CONVERTER, APPARATUS AND ELECTROLYSIS SYSTEM
0,EL0,FC0,EL0,FC0,EL0,FCDC0,ELDC0,FC0,FC), wherein power is drawn from the fuel cell (31) and fed to the network (20). An apparatus and an electrolysis system for carrying out the method are also described.
H02J 3/28 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie
C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
C25B 9/65 - Dispositifs pour l'alimentation en courant; Connexions d'électrodes; Connexions électriques intercellulaires
C25B 15/02 - Commande ou régulation des opérations
H01M 8/00 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Éléments à combustible; Leur fabrication
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 1/08 - Systèmes à trois fils; Systèmes ayant plus de trois fils
09 - Appareils et instruments scientifiques et électriques
35 - Publicité; Affaires commerciales
36 - Services financiers, assurances et affaires immobilières
37 - Services de construction; extraction minière; installation et réparation
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Apparatus and instruments for conducting, switching,
converting, storing, regulating and controlling of
electricity; apparatus and instruments for measuring and
analysing of electricity; software for the energy sector;
mobile apps for the energy sector; electrical indicators for
use in the energy sector; data processing apparatus for use
in the energy sector; inverters; photovoltaic installation
for generating energy; systems, apparatus and instruments
for the production and/or storage of electrical energy,
hydrogen or alternative sources of electrical energy. Direct marketing in the energy sector; negotiation and
conclusion of commercial transactions for third parties in
the energy sector; compiling trade information in the energy
sector; sales promotion in the energy sector; arranging of
contractual trade services with third parties in the energy
sector; advising on the execution of commercial contracts in
the energy sector; procurement of contracts for others for
the purchase and sale of goods and the provision of services
in the energy sector; demonstration of goods for promotional
purposes in the energy sector; presentations of goods and
services in the energy sector; advisory services relating to
commercial transactions in the energy sector; retail
services, including via the internet, related to products
and services for the energy sector; assistance and
consultancy services with regard to business management of
companies in the energy sector; organisational and business
consulting in the creation of solution packages in the field
of energy management; writing of business project studies in
the energy sector; business project management services in
the energy sector; business project management in the energy
sector. Financial project management in the energy sector; project
financing in the energy sector; financial advice and
consultancy services in the energy sector; arranging the
provision of finance in the energy sector; consultancy
concerning financing of energy projects; financial
consultancy service in the energy sector; brokerage of
financial investments in energy companies; consultancy
services relating to the financing of civil works and
infrastructure projects relating to the energy sector. Installation services of equipment, installations, apparatus
and instruments in the energy sector; maintenance work of
equipment, installations, apparatus and instruments in the
energy sector; repair work of equipment, installations,
apparatus and instruments in the energy sector; assembly
work of equipment, installations, apparatus and instruments
in the energy sector; cleaning services in the energy
sector; laying of cable; installation, maintenance and
repair of energy-saving devices, installation, apparatus and
instruments; installation, maintenance and repair of power
generation equipment, installations, apparatus and
instruments; project management in the energy sector
[construction supervision]. Energy production. Technical regulation and monitoring of energy systems in the
field of electrical energy; technical remote monitoring of
energy systems; recording data regarding energy consumption
in buildings; conducting measurements in the energy sector;
technical analysis in relation to energy supply, energy
production and energy use by third parties; technological
consulting in the energy sector; advisory services in the
field of energy saving, energy use and energy efficiency;
technical verification of the efficient use of energy;
technical advice on energy systems; technological analysis
in the energy sector; online computer services in the energy
sector, namely technical advice; engineering services for
energy supply systems; engineering services in the field of
energy technology; technical monitoring including management
of energy flows; operation of energy management systems,
namely technical monitoring and regulation of energy flows;
engineering project management services in the energy
sector; development, design, implementation, maintenance,
data back-up services and updates regarding software and
mobile apps in the energy sector; preparation of technical
project studies in the energy sector.
49.
DEVICE AND METHOD FOR DETECTING A FAULT CURRENT IN A PHOTOVOLTAIC INSTALLATION, AND PHOTOVOLTAIC INVERTER COMPRISING THE DEVICE
The disclosure is directed to a detection device for detecting a fault current (Ifault) at a PV generator and/or at DC lines of a PV installation assigned to the PV generator. The PV generator has at least one first PV string and a second PV string, which are connected to a PV inverter of the PV installation via in each case two DC lines. In this case, the detection device has at least one current transformer and an evaluation circuit connected to the at least one current transformer. The current transformer can be used jointly by the first PV string and the second PV string, wherein a measurement signal of the jointly usable current transformer represents a difference between a first summation current (Isum,1) flowing from the first PV string towards the ground potential (PE) and a second summation current (Isum,2) flowing from the second PV string towards the ground potential (PE). The fault current (Ifault), when it arises, is a part of the first summation current (Isum,1) and/or the second summation current (Isum,2). The disclosure also includes a PV inverter having a corresponding detection device and also a method for detecting a fault current (Ifault).
A method for stabilizing a DC voltage in a DC grid that includes a DC bus connected to a higher-order grid and to which an energy generating system and at least one load are connected. A variable electric grid output is exchanged between the DC bus and the higher-order grid in order to keep the DC voltage in the DC bus at a nominal voltage. The energy generating system includes a PV generator connected to the DC bus via a DC-to-DC converter and which exchanges an electric generator output with the DC bus. In a normal operating mode, the generator output is set to a normal operating output by the DC-to-DC converter on the basis of an MPP output of the PV generator. In a grid support mode, the generator output is set to a grid support output on the basis of the DC voltage in the DC bus in order to counteract a power imbalance between the electric power supplied in total to the DC bus and the power drawn in total from the DC bus.
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 1/10 - Fonctionnement de sources à courant continu en parallèle
H02J 1/14 - Circuits pour réseaux principaux ou de distribution, à courant continu Équilibrage de la charge dans un réseau
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
H02J 7/35 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p.ex. batterie tampon avec des cellules sensibles à la lumière
51.
Method of and system for detecting a serial arc fault in a power circuit
A method of detecting a serial arc fault in a DC-power circuit includes injecting an RF-signal with a narrow band-width into the DC-power circuit and measuring a response signal related to the injected RF-signal in the DC-power circuit. The method further includes determining a time derivative of the response signal, analyzing the time derivative, and signaling an occurrence of a serial arc fault in the power circuit based on the results of the analysis. A system for detecting an arc fault is configured to perform a method as described before.
The disclosure relates to an inverter including a first bridge branch with a first phase output, a second bridge branch with a second phase output, a third bridge branch with a third phase output, wherein the phase outputs of the bridge branches can each be connected to a phase conductor of a three-phase power distribution network. The inverter is configured, in a normal operating mode of the three-phase power distribution network and/or of a higher-level power supply network connected thereto, to connect the phase outputs to the relevant phase conductor and, in the event of a fault in the three-phase power distribution network and/or in the higher-level power supply network connected thereto, to disconnect the three-phase power distribution network from the higher-level power supply network via a network disconnector, to disconnect the first phase output from the first phase conductor by means of a switching unit and to connect same to a neutral conductor of the three-phase power distribution network, and to establish a neutral potential for the neutral conductor via the first bridge branch. The disclosure further relates to a method for operating an inverter of this kind.
H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p.ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
09 - Appareils et instruments scientifiques et électriques
35 - Publicité; Affaires commerciales
36 - Services financiers, assurances et affaires immobilières
37 - Services de construction; extraction minière; installation et réparation
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
(1) Apparatus and instruments for conducting, switching, converting, storing, regulating and controlling of electricity; apparatus and instruments for measuring and analysing of electricity; software for the energy sector; mobile apps for the energy sector; electrical indicators for use in the energy sector; data processing apparatus for use in the energy sector; inverters; photovoltaic installation for generating energy; systems, apparatus and instruments for the production and/or storage of electrical energy, hydrogen or alternative sources of electrical energy. (1) Direct marketing in the energy sector; negotiation and conclusion of commercial transactions for third parties in the energy sector; compiling trade information in the energy sector; sales promotion in the energy sector; arranging of contractual trade services with third parties in the energy sector; advising on the execution of commercial contracts in the energy sector; procurement of contracts for others for the purchase and sale of goods and the provision of services in the energy sector; demonstration of goods for promotional purposes in the energy sector; presentations of goods and services in the energy sector; advisory services relating to commercial transactions in the energy sector; retail services, including via the internet, related to products and services for the energy sector; assistance and consultancy services with regard to business management of companies in the energy sector; organisational and business consulting in the creation of solution packages in the field of energy management; writing of business project studies in the energy sector; business project management services in the energy sector; business project management in the energy sector.
(2) Financial project management in the energy sector; project financing in the energy sector; financial advice and consultancy services in the energy sector; arranging the provision of finance in the energy sector; consultancy concerning financing of energy projects; financial consultancy service in the energy sector; brokerage of financial investments in energy companies; consultancy services relating to the financing of civil works and infrastructure projects relating to the energy sector.
(3) Installation services of equipment, installations, apparatus and instruments in the energy sector; maintenance work of equipment, installations, apparatus and instruments in the energy sector; repair work of equipment, installations, apparatus and instruments in the energy sector; assembly work of equipment, installations, apparatus and instruments in the energy sector; cleaning services in the energy sector; laying of cable; installation, maintenance and repair of energy-saving devices, installation, apparatus and instruments; installation, maintenance and repair of power generation equipment, installations, apparatus and instruments; project management in the energy sector [construction supervision].
(4) Energy production.
(5) Technical regulation and monitoring of energy systems in the field of electrical energy; technical remote monitoring of energy systems; recording data regarding energy consumption in buildings; conducting measurements in the energy sector; technical analysis in relation to energy supply, energy production and energy use by third parties; technological consulting in the energy sector; advisory services in the field of energy saving, energy use and energy efficiency; technical verification of the efficient use of energy; technical advice on energy systems; technological analysis in the energy sector; online computer services in the energy sector, namely technical advice; engineering services for energy supply systems; engineering services in the field of energy technology; technical monitoring including management of energy flows; operation of energy management systems, namely technical monitoring and regulation of energy flows; engineering project management services in the energy sector; development, design, implementation, maintenance, data back-up services and updates regarding software and mobile apps in the energy sector; preparation of technical project studies in the energy sector.
09 - Appareils et instruments scientifiques et électriques
35 - Publicité; Affaires commerciales
36 - Services financiers, assurances et affaires immobilières
37 - Services de construction; extraction minière; installation et réparation
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Apparatus and instruments for conducting, switching, converting, storing, regulating and controlling of electricity; apparatus and instruments for measuring and analyzing of electricity; recorded and downloadable software for the energy sector for monitoring, regulating, optimizing and controlling energy production, energy needs and energy consumption in the energy sector; recorded and downloadable mobile applications being software for the energy sector for monitoring, regulating, optimizing and controlling energy production, energy needs and energy consumption in the energy sector; electrical indicators for use in the energy sector for monitoring, regulating, optimizing and controlling electrical current flow; data processing apparatus for use in the energy sector; inverters; photovoltaic installation for generating energy, namely, solar modules for the production of electricity; systems, apparatus and instruments for the production and/or storage of electrical energy, hydrogen or alternative sources of electrical energy, namely accumulators, electric storage batteries, battery chargers, solar-powered rechargeable batteries and renewable battery system to provide backup power Direct marketing in the energy sector; negotiation and conclusion of commercial transactions for third parties in the energy sector; compiling trade information for business purposes in the energy sector; sales promotion in the energy sector; arranging of contractual trade services with third parties in the energy sector; advising for business purposes on the execution of commercial contracts in the energy sector; procurement of contracts for others for the purchase and sale of goods and the provision of services in the energy sector; demonstration of goods for promotional purposes in the energy sector; presentations of goods and services in the energy sector, namely, planning and conducting trade fairs, exhibitions and presentations for economic or advertising purposes; business advisory services relating to commercial transactions in the energy sector; retail services, including via the internet, related to products and services for the energy sector, namely, retail store services featuring apparatus and instruments for monitoring, regulating, optimizing and controlling energy production, energy needs and energy consumption in the energy sector; assistance and consultancy services with regard to business management of companies in the energy sector; business organizational and business consulting in the creation of solution packages in the field of energy management; writing of business project studies in the energy sector, namely, preparation and writing of business project studies in the nature of business analysis, information services and market research in the energy sector; business project management services in the energy sector; business project management in the energy sector Financial project management in the energy sector; project financing in the energy sector; financial advice and consultancy services in the energy sector; arranging the provision of finance in the energy sector; financial consultancy concerning financing of energy projects; financial consultancy service in the energy sector; Brokerage of financial investments in energy companies; financial consultancy services relating to the financing of civil works and infrastructure projects relating to the energy sector Installation services of equipment, installations, apparatus and instruments in the energy sector, namely, of renewable energy generation equipment, apparatus and instruments for conducting, switching, converting, storing, regulating and controlling of electricity, and apparatus and instruments for measuring and analyzing of electricity; maintenance work of equipment, installations, apparatus and instruments in the energy sector, namely, of renewable energy generation equipment including apparatus and instruments for conducting, switching, converting, storing, regulating and controlling of electricity and apparatus and instruments for measuring and analyzing of electricity; repair work of equipment, installations, apparatus and instruments in the energy sector, namely, of renewable energy generation equipment including apparatus and instruments for conducting, switching, converting, storing, regulating and controlling of electricity and apparatus and instruments for measuring and analyzing of electricity; assembly work of equipment, installations, apparatus and instruments in the energy sector, namely, of renewable energy generation equipment including apparatus and instruments for conducting, switching, converting, storing, regulating and controlling of electricity and apparatus and instruments for measuring and analyzing of electricity; cleaning services in the energy sector, namely, cleaning of renewable energy generation equipment including apparatus and instruments for conducting, switching, converting, storing, regulating and controlling of electricity and apparatus and instruments for measuring and analyzing of electricity; laying of cable; installation, maintenance and repair of energy-saving devices, installations, apparatus and instruments for energy production, energy needs and energy consumption in the energy sector; installation, maintenance and repair of power generation equipment, installations, apparatus and instruments; construction project management in the energy sector Energy production Technical electronic monitoring of energy systems in the field of electrical energy using computers, recorded and downloadable software, mobile applications or sensors; technical remote monitoring of energy systems to ensure proper functioning; recording data for others on optical, digital and magnetic media for electronic storage, namely, data regarding energy consumption in buildings; conducting measurements in the energy sector; technical analysis in relation to energy supply, energy production and energy use by third parties, namely, energy auditing; technological consulting in the energy sector; engineering advisory services in the field of energy saving, energy use and energy efficiency; technical verification of energy systems to improve the efficient use of energy; technological advice on energy systems, namely, advice in the fields of optimizing energy production, energy needs and energy consumption in the energy sector; technological analysis in the energy sector, namely, in the field of renewable energy sources, hydrogen and alternative sources of electrical energy; online computer services in the energy sector, namely, technological advice relating to optimizing energy production, energy needs and energy consumption in the energy sector; engineering services for energy supply systems; engineering services in the field of energy technology; technical monitoring of energy flows for optimizing energy flows and for quality control purposes; technical monitoring of energy flows for optimizing energy flows and for quality control purposes; engineering project management services in the energy sector; development, design, implementation, maintenance, electronic data back-up services and updates regarding software and mobile application software in the energy sector; preparation of technical project studies in the energy sector, namely, conducting engineering studies for optimizing energy production, energy needs and energy consumption in the energy sector
55.
METHOD FOR EXTENDING A VOLTAGE RANGE OF A RECTIFIER, RECTIFIER FOR CARRYING OUT THE METHOD, AND ELECTROLYSIS SYSTEM
A method and related apparatus for extending a DC voltage range of a rectifier circuit for the supply, from an AC grid, of a DC load which is connected to a DC rectifier output of the rectifier circuit, wherein an AC rectifier input of the rectifier circuit is connected via a grid connection point to the AC grid, wherein the rectifier circuit includes an AC/DC converter having an AC input and a DC output, wherein the AC/DC converter includes a converter circuit having semiconductor switches and freewheeling diodes connected in an antiparallel arrangement thereto, wherein an inductance is connected between the AC input of the AC/DC converter and the grid connection point. The method includes setting a desired DC operating voltage UDOC,soll on the DC output of the AC/DC converter or on the DC rectifier output, or both, by an actuation of semiconductor switches of the AC/DC converter, wherein, when the desired DC operating voltage UDC,soll lies below a value of an amplitude Û4 of an alternating voltage on the AC input of the AC/DC converter, the semiconductor switches of the AC/DC converter are actuated for an exchange of reactive power Q1(t) with the AC grid, which has a voltage-lowering effect upon the amplitude Û4 of the AC voltage at the AC input of the AC/DC converter, such that the amplitude Û4 approaches the desired DC operating voltage UDC,soll, and wherein the exchange of the reactive power Q1(t) with the AC grid is executed during or shortly before an electrical connection or an electrical isolation of the DC load to or from the rectifier circuit.
H02M 7/219 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs dans une configuration en pont
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
C25B 9/65 - Dispositifs pour l'alimentation en courant; Connexions d'électrodes; Connexions électriques intercellulaires
56.
METHOD FOR OPERATING AN ELECTROLYZER, CONNECTION CIRCUIT, RECTIFIER CIRCUIT, AND ELECTROLYSIS SYSTEM FOR CARRYING OUT THE METHOD
The application describes a method for operating an electrolyzer to generate hydrogen from water using an electrolysis reaction, supplied with power from an AC grid via an actively controlled rectifier circuit. The method includes operating the electrolyzer in a normal operating mode with an input voltage UEI above a no-load voltage ULL with predominantly ohmic behavior, operating the electrolyzer in a standby operating mode with an input voltage UEI below the no-load voltage ULL with predominantly capacitive behavior, and transitioning from the standby operating mode to the normal operating mode during a first transition duration Δt1, wherein the first transition duration Δt1 is reduced by keeping the input voltage UEI at the electrolyzer input during the standby operating mode above a first voltage threshold value UTH,1 different from 0 V. The application furthermore describes a connection circuit, an actively controlled rectifier circuit and an electrolysis system for performing the method.
C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p.ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
The invention relates to a method for operating an inverter (100) with a DC input and an AC output. The DC input can be connected to a DC source (10), bridge branches (125) of a bridge circuit (110) are connected to the AC output via power chokes (L1ac, L1ac_a, L1ac_b, L2ac, L2ac_a, L2ac_b,L3ac, L3ac_a, L3ac_b), and the AC output can be connected to an AC grid (20, 30) via isolating switches (GR), wherein the inverter (100) is designed to feed electric power to the AC grid (20, 30). The method has the steps of: - opening the isolating switches (GR), and - actuating semiconductor switches (T1, T2, T3, T4, T5, T6) of at least two bridge branches (125) of the bridge circuit (110), said bridge branches being connected behind at least one power choke (L1ac, L1ac_a, L1ac_b, L2ac, L2ac_a, L2ac_b, L3ac, L3ac_a, L3ac_b) from the AC side such that a DC source (10) connected to the DC input is loaded, wherein the sum of the totality of currents flowing from at least one of the at least two bridge branches (125) on the AC side corresponds to the sum of the totality of currents flowing into at least one other bridge branch of the at least two bridge branches (125) on the AC side. The invention additionally relates to an inverter.
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p.ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
H02S 40/32 - Composants électriques comprenant un onduleur CC/CA associé au module PV lui-même, p.ex. module CA
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
The application describes a DC bus bar (13) for electrically connecting to a DC link of a power converter, comprising a first and a second positive bar (3) and a first and a second negative bar (4), the positive and negative bars (3, 4) each running parallel to each other, and comprising a first clip (2), which is designed to bring the first and second positive bars (3, 4) to a common first electric potential, and a second clip (2), which is designed to bring the first and second negative bars (3, 4) to a common second electric potential, the first and second positive bars (3) being provided for being electrically connected to a first terminal (8) of a first part of the DC link and to a first terminal (8) of a second part of the DC link, and the first and second negative bars (4) being provided for being electrically connected to a second terminal (8) of the first part of the DC link and to a second terminal (8) of the second part of the DC link. The application also describes an assembly, comprising a DC bus bar (13) and a power converter, and a switchgear cabinet (1).
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu; Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif
H01R 25/16 - Rails ou barres omnibus pourvus de plusieurs points de connexion pour pièces complémentaires
H02B 1/20 - Schémas de barres omnibus ou d'autres fileries, p.ex. dans des armoires, dans les stations de commutation
The invention relates to an operating method for an inverter (2) which is connected on the AC side to an AC power supply network (15), in which method measurement variables detected by the inverter (2) in its interior are monitored and controlled in order to comply with limit values (42) of these measurement variables, said limit values limiting wear (40) of the inverter (2). The operating method according to the invention makes it possible to operate the inverter in a particularly flexible manner in order to optimise the use of the inverter within its service life. To this end, a controller (22) of the inverter (2) controls the limit values (42) in a closed-loop manner depending on a parameter (32) that represents a current feed-in tariff.
G06Q 50/06 - Fourniture d'électricité, de gaz ou d'eau
G06Q 30/02 - Marketing; Estimation ou détermination des prix; Collecte de fonds
G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
H02M 7/537 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p.ex. onduleurs à impulsions à un seul commutateur
H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu; Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif
A device for current determination includes a shunt and a device for temperature measurement including a printed circuit board, an evaluation unit and a temperature sensor. The printed circuit board has a milled groove which runs spirally around the temperature sensor, so that the temperature sensor is arranged on a printed circuit board plateau defined by the milled groove and is displaceable in a direction that is parallel to a normal vector of a plane defined by the printed circuit board. When the temperature sensor is displaced relative to the plane of the printed circuit board, a restoring force is brought about between the printed circuit board and the temperature sensor, wherein the shunt includes a resistance region having a substantially flat surface, wherein the device for current determination is arranged in the resistance region on the surface of the shunt in such a way that the temperature sensor is arranged in thermal connection with the resistance region of the shunt, wherein voltage taps are arranged on both sides of the temperature sensor and electrically contact the surface of the shunt in order to detect a potential difference along the resistance region.
G01R 1/20 - Modifications des éléments électriques fondamentaux en vue de leur utilisation dans des appareils de mesures électriques; Combinaisons structurelles de ces éléments avec ces appareils
G01R 19/32 - Compensation des variations de température
G01K 1/143 - Supports; Dispositifs de fixation; Dispositions pour le montage de thermomètres en des endroits particuliers pour la mesure de la température de surfaces
H05K 3/00 - Appareils ou procédés pour la fabrication de circuits imprimés
H05K 1/18 - Circuits imprimés associés structurellement à des composants électriques non imprimés
61.
DEVICE AND METHOD FOR ALLOCATING A PHASE CONNECTION OF AN ELECTRIC DEVICE TO A PHASE CONDUCTOR CONNECTED THERETO
L1L2L3RSTL1L2L3L1L2L3RSTL1L2L3RSTL1L2L3L3(t)) detected on the respective phase conductor (L1, L2, L3) is minimal with respect to the property of the time curves. The invention additionally relates to a device which is suitable for and which is designed to carry out the method.
The disclosure relates to a method for supplying a consumer device with electrical energy from an industrial DC network. The method having includes establishing a connection between an energy storage and the industrial DC network and transferring electrical energy from the DC network to the energy storage. When the connection is established between the energy storage and the industrial DC network, a connection between the energy storage and the consumer device is disconnected and the consumer remains galvanically isolated from the industrial DC network. The method also includes establishing a connection between the consumer device and the energy storage and transferring electrical energy from the storage energy storage to the consumer device. When the connection is established between the consumer device and the energy storage, a connection between the energy storage and the industrial DC network is disconnected and the consumer device remains galvanically isolated from the industrial DC network. The disclosure also relates to a system and an apparatus for supplying a consumer device with electrical energy.
B60L 53/10 - PROPULSION DES VÉHICULES À TRACTION ÉLECTRIQUE; FOURNITURE DE L'ÉNERGIE ÉLECTRIQUE À L'ÉQUIPEMENT AUXILIAIRE DES VÉHICULES À TRACTION ÉLECTRIQUE; SYSTÈMES DE FREINS ÉLECTRODYNAMIQUES POUR VÉHICULES, EN GÉNÉRAL; SUSPENSION OU LÉVITATION MAGNÉTIQUES POUR VÉHICULES; CONTRÔLE DES PARAMÈTRES DE FONCTIONNEMENT DES VÉHICULES À TRACTION ÉLECTRIQUE; DISPOSITIFS ÉLECTRIQUES DE SÉCURITÉ POUR VÉHICULES À TRACTION ÉLECTRIQUE Échange d'éléments d’emmagasinage d'énergie dans les véhicules électriques caractérisés par le transfert d’énergie entre la station de charge et le véhicule
In large PV power plants, grounding of individual PV modules may lead to problems. The present invention overcomes such problems. The basis for the invention is a PV power plant comprising one or more PV generators, each comprising a PV string and an inverter with a DC input and an AC output. The PV string comprises at least one PV module and is electrically connected to the DC input of the inverter. The inverter comprises means for controlling the DC potential at the DC input depending on the DC potential at the AC output. The AC outputs of the inverters are coupled in parallel. The novel feature of the invention is that the PV power plant further comprises an offset voltage source, which controls the DC potential at the AC outputs. Thereby, the DC potential at the DC input will be indirectly controlled, and it is thus possible to ensure that the potentials with respect to ground at the terminals of the PV modules are all non-negative or all non-positive without grounding the PV modules. Ground loops can be avoided, and there is no need for the use of transformer-based inverters.
H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs
64.
METHOD FOR THE STARTING OF AN ELECTROLYSIS SYSTEM, AND ELECTROLYSIS SYSTEM FOR CARRYING OUT THE METHOD
The invention relates to a method for the starting of an electrolysis system (50), comprising an electrolyzer (22) and a supply unit (10), which operates as a rectifier. The supply unit (10) has an AC terminal (11) connected to an AC grid (30), a DC terminal (12) connected to the electrolyzer (22), and an AC-DC converter (3) disposed between the AC terminal (11) and the DC terminal (12). The method comprises the steps of: - charging an output capacitor (4), which is connected to a DC converter terminal (3.2) of the AC-DC converter (3), by operating the electroyzer (22) in a reverse mode as a DC voltage source, while the AC-DC converter (3) is in a state in which it is connected to the electrolyzer (22) and disconnected from the AC grid (30), - connecting the AC-DC converter (3) to the AC grid (30), - reversing the operation of the electrolyzer (22) from the reverse mode to a normal mode as a DC load, wherein, during the reversing of the operation, a power flow between the AC grid (30) and the electrolyzer (22) is completely or at least largely suppressed, and - operating the electrolyzer (22) in the normal mode as a DC load with electrical power which is drawn from the AC grid (30) by means of the supply unit (10) and which is rectified by means of the AC-DC converter (3). The invention also relates to an electrolysis system (50).
C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
H01M 8/18 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Éléments à combustible; Leur fabrication Éléments à combustible à régénération, p.ex. batteries à flux REDOX ou éléments à combustible secondaires
65.
BUSBAR FOR MEASURING A DIRECT AND/OR ALTERNATING CURRENT
A busbar (11, 14) for measuring a direct and/or alternating current, in particular with current intensities of greater than 100 amperes, has connection regions (11a) and at least one resistance region (11b) which is arranged between the connection regions (11a) and has two measuring contacts (12) arranged in the resistance region (11b), wherein the busbar (11, 14) has a geometry in which the regions of the measuring contacts (12) are substantially deenergized during operation of the busbar (11, 14), wherein the busbar (11, 14) is formed in one piece. An apparatus (10) for determining current and having such a busbar (11, 14) and a power converter having such an apparatus are also disclosed.
G01R 1/20 - Modifications des éléments électriques fondamentaux en vue de leur utilisation dans des appareils de mesures électriques; Combinaisons structurelles de ces éléments avec ces appareils
66.
METHOD FOR OPERATING AN ENERGY SUPPLY SYSTEM, DEVICE FOR EXCHANGING ELECTRICAL POWER IN AN ENERGY SUPPLY SYSTEM, AND ENERGY SUPPLY SYSTEM
The invention relates to a method for operating an energy supply system (10), wherein a first and a second DC unit (22, 26, 28) exchange power with an AC bus (20) by means of a first and a second power converter (12, 14, 16, 18), respectively. With transmission by means of a transformer (32), this power is then combined and is converted, by means of a third power converter (34), into a DC grid power of a DC grid (30) and/or vice versa. At least the first DC unit (22) is in the form of an energy generation unit, more particularly a PV system having at least one PV generator (24). A frequency and an amplitude of the AC voltage and/or of the AC current on the AC bus (20) are set. The third power converter (34) sets the frequency on the AC bus (20) in accordance with the DC grid power and, to set the AC voltage and/or the AC current, sets the DC grid power in accordance with the AC bus power. The invention also relates to a device for exchanging electrical power in an energy supply system (10) and to a corresponding energy supply system (10).
A circuit arrangement for balancing a split DC link arranged between a first DC-voltage terminal and a second DC-voltage terminal is disclosed. The first DC-voltage terminal is connected via a first semiconductor switch to a first intermediate point that is connected via a second semiconductor switch to a bridge center point that is connected via a third semiconductor switch to a second intermediate point that is connected via a fourth semiconductor switch to the second DC-voltage terminal. A first terminal of a resonant capacitor is connected to the first intermediate point, and a second terminal of the resonant capacitor is connected to a DC-link center point via a connecting path, in which a resonant inductor is arranged in a series circuit with the third semiconductor switch, and which runs via the second intermediate point. An additional winding is magnetically coupled to the resonant inductor and a first terminal thereof is connected via a first diode to a first terminal of a countervoltage source, and a second terminal thereof is connected to a second terminal of the countervoltage source so that an energy coupled into the additional winding from the resonant inductor is discharged into the countervoltage source.
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p.ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
H02M 7/483 - Convertisseurs munis de sorties pouvant chacune avoir plus de deux niveaux de tension
68.
FAIL-SAFE OPERATING METHOD FOR A DECENTRALIZED POWER GENERATION PLANT
A fail-safe operating method for a decentralized power generation plant DG includes determining a leakage capacitance of a generator of the DG before connecting the DG. The method also includes comparing the determined leakage capacitance with a predetermined first limit value, and connecting the DG to a grid only if the determined leakage capacitance is smaller than the predetermined first limit value. A decentralized power generation plant is configured to perform the method.
Disclosed is an electrical unit with a first port configured to be operatively connected to an AC-grid, a second port configured to be operatively connected to an AC-load, and a third port to be operatively connected to an AC-side of a first inverter. The electrical unit includes a first choke arranged between the third port and the second port. The electrical unit is configured to transfer electrical power provided by the first inverter from the third port via the first choke to the second port. The electrical unit is configured to provide grid-forming electrical power to the second port in case of disconnection from the AC-grid at the first port. Further disclosed is a backup power system and a method for operating a backup power system.
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p.ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
70.
METHOD FOR OPERATING A SHORT-CIRCUIT-PROTECTED SUPPLY SYSTEM, AND SHORT-CIRCUIT-PROTECTED SUPPLY SYSTEM
The application relates to a method for operating a short-circuit-protected supply system (10) for supplying a DC grid (14) from an AC grid (12), the supply system (10) comprising: - an active rectifier (20) with sinusoidal filter chokes (20.1) which are upstream on the AC side, - a precharging device and - a short-circuit protection device, and the short-circuit protection device being designed to conduct a short-circuit current occurring because of a fault in the DC grid from the AC grid (12) into the DC grid (14) in such a way that the active rectifier (20) is bypassed. The method comprises the following steps for starting the supply system (10): a) precharging the DC grid (14) by means of the precharging device (39, 41), the active rectifier (20) being connected, on the DC side, to the DC grid (14), b) establishing a connection of the active rectifier (20), on the AC side, to the AC grid (12) at a first time during the precharging at which a voltage of the DC grid (14) exceeds a first threshold value, c) establishing a connection between the AC grid (12) and the DC grid (14) by means of the short-circuit protection device (37, 41) at a second time during the precharging at which the voltage of the DC grid (14) exceeds a second threshold value. The application also relates to a short-circuit-protected supply system (10).
H02H 7/125 - Circuits de protection de sécurité spécialement adaptés pour des machines ou appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou ligne, et effectuant une commutation automatique dans le cas d'un chan pour redresseurs pour convertisseurs ou redresseurs statiques pour redresseurs
H02H 9/00 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
Disclosed is an electrical unit with a first port configured to be operatively connected to an AC-grid, a second port configured to be operatively connected to an AC-load, and a third port to be operatively connected to an AC-side of a first inverter. The electrical unit includes a first choke arranged between the third port and the second port. The electrical unit is configured to transfer electrical power provided by the first inverter from the third port via the first choke to the second port. The electrical unit is configured to provide grid-forming electrical power to the second port in case of disconnection from the AC-grid at the first port. Further disclosed is a backup power system and a method for operating a backup power system.
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
H02J 9/00 - Circuits pour alimentation de puissance de secours ou de réserve, p.ex. pour éclairage de secours
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p.ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
72.
METHOD AND CIRCUIT ARRANGEMENT FOR DETECTING AN ARC, AND PHOTOVOLTAIC (PV) INVERTER HAVING A CORRESPONDING CIRCUIT ARRANGEMENT
The disclosure is directed to a method for detecting an arc in a direct-current circuit including a DC load, a DC source supplying the DC load, and a circuit arrangement arranged between the DC source and the DC load. A power flow between the DC source and an output of the circuit arrangement is cyclically interrupted by a switching circuit, such that the power flow is enabled in an active time window with the first period Δt1 and the power flow is suppressed in an inactive time window with the second period Δt2. Detection of a current I characterizing the power flow P and/or a voltage U characterizing the power flow P in two consecutive active time windows and comparison of the detected values of current I and/or voltage U of the active time window with the corresponding detected values from the preceding active time window can signal an arc if these values of the active time window differ from the corresponding values of the preceding active time window by more than a threshold value. The application also describes a circuit arrangement for detecting an arc and a photovoltaic (PV) inverter comprising such a circuit arrangement.
G01R 31/66 - Test de connexions, p.ex. de fiches de prises de courant ou de raccords non déconnectables
H02S 40/32 - Composants électriques comprenant un onduleur CC/CA associé au module PV lui-même, p.ex. module CA
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p.ex. charge équilibrée progressivement
73.
METHOD FOR SUPPLYING A DC LOAD, ENERGY CONVERSION SYSTEM AND ELECTROLYSIS SYSTEM
The disclosure is directed to a method for supplying power to a DC load using an energy conversion system that includes first and second rectifiers and a transformer system. Each of the rectifiers contains an AC-DC converter connected to an AC grid via a separate secondary side of the transformer system. The transformer system provides a first AC voltage having a first voltage amplitude Û1 on the first secondary side and a second AC voltage having a second voltage amplitude Û2 on the second secondary side, wherein a value of the second voltage amplitude Û2 exceeds a corresponding value of the first voltage amplitude Û1. The method includes operating the first rectifier with a first non-zero power flow P1 to supply power to the DC load when an input voltage UDC,load at the input of the DC load falls below a voltage threshold value UTH: wherein a second power flow P2 through the second rectifier is suppressed, and operating the second rectifier with a second non-zero power flow P2 to supply power to the DC load when the input voltage UDC,load at the input of the DC load reaches or exceeds the voltage threshold value UTH. The application likewise discloses an energy conversion system for performing the method and an electrolysis system.
H02M 7/04 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques
H02J 5/00 - Circuits pour le transfert d'énergie électrique entre réseaux à courant alternatif et réseaux à courant continu
C25B 9/65 - Dispositifs pour l'alimentation en courant; Connexions d'électrodes; Connexions électriques intercellulaires
74.
METHOD AND CIRCUIT ARRANGEMENT FOR DETECTING AN ARC AND PHOTOVOLTAIC (PV) INVERTER HAVING A CORRESPONDING CIRCUIT ARRANGEMENT
The disclosure describes a method for detecting an arc in a direct-current (DC) circuit comprising a DC load, a DC source supplying the DC load, and a circuit arrangement arranged between the DC source and the DC load. A power flow P between an input and an output of the circuit arrangement is suppressed by means of a switching circuit through cyclical interruption such that the power flow P is enabled in an active time window with the first period Δt1 and the power flow P is suppressed in an inactive time window with the second period Δt2. Via detection of an input current Iin flowing at the input and/or an input voltage Uin applied to the input and comparison of values of the input current Iin and/or input voltage Uin detected in the inactive time window with a current threshold value ITH or a voltage threshold value UTH an arc presence criterion is signaled if the input current Iin detected in the inactive time window falls below the current threshold value ITH and/or the input voltage Uin detected in the inactive time window does not exceed the voltage threshold value UTH. The application also describes a circuit arrangement for detecting an arc and a photovoltaic (PV) inverter including such a circuit arrangement.
H02S 50/00 - Surveillance ou tests de systèmes PV, p.ex. équilibrage de charge ou identification des défauts
H02S 40/36 - Composants électriques caractérisés par des moyens d'interconnexions électriques spéciaux entre plusieurs modules PV, p.ex. connexion électrique module à module
H02S 40/32 - Composants électriques comprenant un onduleur CC/CA associé au module PV lui-même, p.ex. module CA
75.
CHANGEOVER DEVICE, RETROFIT KIT AND METHOD FOR SUPPLYING ELECTRICAL POWER TO A LOAD
A changeover device for selectively supplying power to at least one load from a grid or a bidirectional inverter includes an input having a grid neutral conductor connection and a grid phase conductor connection for connection to the grid. The changeover device further includes a first output having an inverter neutral conductor connection and an inverter phase conductor connection for connecting the bidirectional inverter, a second output having a load neutral conductor connection and a load phase conductor connection for connecting the load and a switching circuit, the actuator of which is connected to an actuator input of the changeover device. The switching circuit includes a first and a second normally closed contact and a normally open contact that are connected in an interconnection to the grid phase conductor connection, the inverter phase conductor connection, and the load phase conductor connection. An associated method is also disclosed.
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p.ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
76.
METHOD FOR DEFINING AUTHENTICATION DATA OF A USER AT AN ENERGY CONVERSION DEVICE, AND ENERGY CONVERSION DEVICE
The invention relates to a method for defining authentication data of a user at an energy conversion device by means of a network connection, the energy conversion device being connected to a grid and to a source, and the method comprising the following steps: - the energy conversion device receiving, by means of the network connection, a request from the user to newly assign authentication data (S1); - the energy conversion device receiving desired authentication data of the user by means of the network connection (S2); - permanently storing the desired authentication data in the energy conversion device for the authentication of the user in the event of subsequent attempts to access the energy conversion device (S4), only on condition that the energy conversion device is disconnected from the connected grid within a first predefined time period (A) after the receipt of the request (S3). The invention also relates to an energy conversion device designed to carry out the method.
G06F 21/45 - Structures ou outils d’administration de l’authentification
G06F 21/81 - Protection de composants spécifiques internes ou périphériques, où la protection d'un composant mène à la protection de tout le calculateur en agissant sur l’alimentation, p.ex. en branchant ou en débranchant l’alimentation, les fonctions de mise en veille ou de reprise
G06Q 50/06 - Fourniture d'électricité, de gaz ou d'eau
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p.ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseau; Circuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p.ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
The invention relates to a power semiconductor assembly (10, 20, 30), comprising a first circuit board (14), a second circuit board (16) and a power semiconductor (12), wherein: the first circuit board (14) is electrically connected to the second circuit board (16), and the power semiconductor (12) is electrically connected to the second circuit board (16); and the first circuit board (14) is mechanically connected to the second circuit board (16) by means of a conductive short-distance connection (18). The invention also relates to an inverter bridge comprising a power semiconductor assembly (10, 20, 30) of this type and to an inverter comprising an inverter bridge of this type.
H05K 1/14 - Association structurale de plusieurs circuits imprimés
H05K 1/18 - Circuits imprimés associés structurellement à des composants électriques non imprimés
H01L 23/13 - Supports, p.ex. substrats isolants non amovibles caractérisés par leur forme
H01L 23/373 - Refroidissement facilité par l'emploi de matériaux particuliers pour le dispositif
H01L 23/538 - Dispositions pour conduire le courant électrique à l'intérieur du dispositif pendant son fonctionnement, d'un composant à un autre la structure d'interconnexion entre une pluralité de puces semi-conductrices se trouvant au-dessus ou à l'intérieur de substrats isolants
H01L 25/16 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant de types couverts par plusieurs des groupes principaux , ou dans une seule sous-classe de , , p.ex. circuit hybrides
H01L 25/18 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant de types prévus dans plusieurs sous-groupes différents du même groupe principal des groupes , ou dans une seule sous-classe de ,
The invention relates to a platform (10) for the space-saving configuration of an energy conversion installation (50), wherein skids (30) with converter units (31) of the energy conversion installation (50) are stacked one on top of the other on platforms (10), - wherein the platforms (10) each comprise a frame structure having a storage surface (17) for the skid (30), and have alignment elements (12) on a first side and support posts (13) on a second side of the frame structure, opposite the first side, - wherein the frame structure forms a floor surface (18) which surrounds the storage surface (17), can be walked on by personnel and forms the access to the relevant converter unit (31), and - wherein the platforms (10) interact via the support posts (13) and/or the alignment elements (12) of the platforms (10) such as to create a laterally centred and vertically spaced arrangement of the storage surfaces (17) of the adjacent platforms (10) within the stack (24), and - wherein, in the stacked state, a free space is formed between the storage surfaces (17) of the adjacent platforms (10) in order to receive the converter units (31) arranged on the respective skids (30). The invention further relates to an energy conversion installation.
E04B 1/348 - Structures composées d'unités comportant au moins des parties importantes des deux côtés d'une pièce, c. à d. unités en forme de boîtes ou de cellules closes ou en forme de carcasses
79.
METHOD FOR LOGGING AN AUTHORISED USER IN TO A DEVICE, IN PARTICULAR TO A DEVICE FOR A POWER GENERATION PLANT, AND POWER GENERATION PLANT WITH DEVICE
The application relates to a method for logging a user (14) in to a device (10) by means of a service gateway (12), wherein access authorisation of the user (14) for the device (10) is stored on the service gateway (12), the method comprising the steps of: - authenticating the user (14) on the service gateway (12), - sending a device access request by the user (14) to the service gateway (12), with specification of an identifier for the device (10), - comparing a device secret stored on the service gateway (12) with a copy of the device secret stored on the device (10) via an SRP protocol, the comparison being performed via a data connection between an access device (16) of the user (14) and the service gateway (12) and a data connection between the access device (16) and the device (10). If the comparison is successful, a session key is agreed upon between the device (10) and the service gateway (12). The application further relates to a power generation plant.
H04L 9/32 - Dispositions pour les communications secrètes ou protégées; Protocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système
H02M 1/15 - Dispositions de réduction des ondulations d'une entrée ou d'une sortie en courant continu utilisant des éléments actifs
H02M 1/44 - Circuits ou dispositions pour corriger les interférences électromagnétiques dans les convertisseurs ou les onduleurs
H02J 1/02 - Dispositions pour réduire les harmoniques ou les ondulations
H02J 1/10 - Fonctionnement de sources à courant continu en parallèle
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p.ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
81.
METHOD FOR INFLUENCING A HARMONIC, REGULATING UNIT, AND INVERTER COMPRISING REGULATING UNIT
The invention relates to a method for influencing a harmonic of an AC signal (9) on the AC side of an inverter (6) which converts electric power between the DC side of the inverter (6) and the AC side of the inverter (6) or vice versa. The power conversion is regulated by means of a controller (14) of the inverter (6), and a compensation signal (17) is added to an actuating variable (15) of the controller (14). The compensation signal (17) has a first and a second compensation parameter (25, 27), wherein the first compensation parameter (25) is designed to influence a first parameter of the harmonic, and the second compensation parameter (27) is designed to influence a second parameter of the harmonic.
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
H02M 7/797 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu; Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif avec possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p.ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
An inverter with a rated power of at least 3 kVA includes a first assembly which includes a first printed circuit board and a DC/AC converter stage, and a second assembly which includes a second printed circuit board and an EMC filter for the DC/AC converter stage. The first printed circuit board is mounted on a heat sink and lies substantially flat on the heat sink, and the DC/AC converter stage has converter components which comprise power semiconductors, chokes and link circuit capacitors. The chokes and the link circuit capacitors are arranged together on one side of the first printed circuit board, and the heat sink is arranged on the opposite side of the first printed circuit board, and the chokes and/or the power semiconductors are thermally connected to the heat sink via the first printed circuit board and a thermally conductive material arranged between the first printed circuit board and the heat sink. The second printed circuit board is arranged on the side of the first printed circuit board opposite the heat sink, and a metal sheet is arranged between the first assembly and the second assembly, and the second printed circuit board is mounted on the metal sheet.
A method for ascertaining a load flow map within an AC-voltage power supply grid, wherein a plurality of grid subscribers are each arranged at a respective grid connection point in the power supply grid, includes ascertaining, by each of the plurality of grid subscribers, a respective value reflecting an individual phase angle (ϕ) of the AC voltage of the power supply grid at the respective grid connection point of each of the plurality of grid subscribers. The method also includes transmitting the respective values in the form of data from the respective plurality of grid subscribers to a superordinate data receiver; and evaluating the data and generating a load flow map based on the values reflecting the individual phase angles (ϕ).
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p.ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseau; Circuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p.ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
84.
AUTONOMOUS DISCHARGING CIRCUIT FOR DISCHARGING A CAPACITOR
The application describes a discharging circuit (100) for discharging a capacitor (1), comprising - an input (101) for the electrical connection of the capacitor (1), - a transistor (3), the drain terminal (3D) of which is connected by way of a discharging resistor (2) to a first input terminal (101a) and the source terminal (3S) of which is connected to the second input terminal (101b), - a gate charging resistor (9), which connects the first input terminal (101a) to a gate terminal (3G) of the transistor (3), - a thermistor (4), which is thermally coupled to the discharging resistor (2) and/or the transistor (3), and - a switch (6), which connects the gate terminal (3G) to the second input terminal (101b), and - a trigger circuit (5), which is designed to control the switch (6) in dependence on a temperature of the thermistor (4). The discharging circuit (100) is designed to be supplied from a voltage applied to the input terminals (101a, 101b), wherein - the switch (6) and/or a combination of the trigger circuit (5) and the switch (6) is set up to change the switching state of the switch (6) abruptly from the blocking switching state to the conducting switching state, in order to generate a transient change from a first operating state BZ1 of the discharging circuit (100) when the transistor (3) is turned on into a second operating state BZ2 of the discharging circuit (100) when the transistor (3) is turned off. The application also discloses a method for discharging a capacitor as well as an electrical device with such a discharging circuit.
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
INVVIINVpccINVINV) at the AC connection (14) above a definable current limit value is recognised during a time period which exceeds a definable first time period: changing to the second mode of operation with adapted control and operating the inverter (10) in the second mode of operation, and raising the threshold value (SW). The application also describes an inverter.
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
A converter device configured to exchange power between a first grid and a second grid, including a first inverter configured to connect on an AC side thereof to the first grid, and connected on a DC side thereof to a link circuit of the converter device, and a second inverter configured to connect on an AC side thereof to the second grid, and connected on a DC side thereof to the link circuit. The converter device also includes a solar generator connected to the link circuit, a first controller operably coupled to the first inverter and configured to set a specified converter power of the first inverter, and a second controller operably coupled to the second inverter and configured to set a voltage of the link circuit such that a power of the solar generator optimized according to a predetermined criteria.
H02J 3/34 - Dispositions pour le transfert de puissance électrique entre réseaux de fréquences très différentes
H02J 3/16 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par réglage de puissance réactive
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
H02M 5/16 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p.ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases sans transformation intermédiaire en courant continu par convertisseurs statiques utilisant des transformateurs pour la transformation de la fréquence
87.
METHOD FOR DETERMINING AN OPERATING PARAMETER OF A PV INSTALLATION, PV INSTALLATION HAVING AN INVERTER AND INVERTER FOR SUCH A PV INSTALLATION
A method and associated system for determining an operating parameter of a PV installation having a plurality of PV modules is disclosed. The PV modules each include a shutdown apparatus connected to a transmission apparatus of the PV installation and has a feed-in operation and a shutdown operation. At least one PV module is equipped with a power-optimizing device which is configured to set an operating point of the PV module in an optimizing operation. The method includes determining a first total electrical power of the PV modules in a non-optimizing operation of the at least one power-optimizing device and in the feed-in operation of the shutdown apparatuses, and determining a second total electrical power of the PV modules in the optimizing operation of all the power-optimizing devices and in the feed-in operation of the shutdown apparatuses. The method also includes determining the operating parameter using a difference between the determined first total electrical power and the determined second total electrical power.
The application describes a transfer unit (12), comprising a first DC bus (7), by means of which a plurality of battery racks (1) can be connected to an inverter bridge (9) for a first power exchange with an AC grid (10). The transfer unit (12) has a second DC bus (8), which is connected to the first DC bus (7) by means of a DC-to-DC converter (6), the DC-to-DC converter (6) having a nominal power which is lower than the nominal power of the inverter bridge (9) by at least a factor of 5. The transfer unit (12) is designed to disconnect at least one battery rack (1) of the plurality of battery racks (1) from the first DC bus and to connect said at least one battery rack to the second DC bus (8) in order for a battery-internal equalization process to be carried. The application also describes a system comprising a transfer unit and a method for carrying out a battery-internal equalization process.
METHOD AND DEVICE FOR MEASURING AN INSULATION RESISTANCE OF A DC VOLTAGE SOURCE CONNECTED TO A SPLIT INTERMEDIATE CIRCUIT DURING MAINS PARALLEL OPERATION
To measure an insulation resistance (Riso) of a DC voltage source (7) connected to a split intermediate circuit (2), a midpoint potential of the DC voltage source (7) is shifted by different operation of two voltage controllers (11, 12) by way of which two poles (9, 10) of the DC voltage source (7) are each connected to one of two parts (3, 4) of the split intermediate circuit (2). A change (I_delta), resulting from the shifting of the midpoint potential of the DC voltage source (7), in a difference current over all lines (25, 26; 28, 29) that carry a current flowing via the intermediate circuit (2) from the DC voltage source (7) is measured in the process.
G01R 27/02 - Mesure de résistances, de réactances, d'impédances réelles ou complexes, ou autres caractéristiques bipolaires qui en dérivent, p.ex. constante de temps
G01R 27/18 - Mesure d'une résistance par rapport à la terre
An explosion-proof housing (1) for a power electronics unit comprises a housing pan (2) and a cover (3) that closes the housing pan (2) via a seal, wherein the cover (3) and the housing pan (2) are pressed against each other only at two opposing sides, formed by edge regions of the cover (3) and the housing pan (2), via a plurality of fasteners (4) which can be released by rotation and engage in latching structures. The plurality of fasteners (4) are arranged in a central third (6.2) of the respective sides (6). The explosion-proof housing can be used in particular for a photovoltaic inverter.
A method for locking a connection between a connector and a mating connector arranged on an electric vehicle is disclosed. The connector is arranged on a charging cable connected to a charging post of a charging station, such as a charging cable fixedly connected to a charging post of a charging station. The connector is associated with a first locking element, and the mating connector is associated with a second locking element, wherein the first locking element and the second locking element cooperate to lock the connection between the connector and the mating connector, and each have an activated state and a deactivated state. The method includes operating the first locking element associated with the connector in an activated state in a first operating mode of the charging station to lock the connection between the connector and the mating connector when the second locking element associated with the mating connector is activated. The method further includes operating the first locking element associated with the connector in a deactivated state in a second operating mode of the charging station to unlock the connection between the connector and the mating connector when the second locking element associated with the mating connector is activated. Additionally described is a charging station which is suitable and set up for carrying out the method.
H01R 43/26 - Appareils ou procédés spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation de connecteurs de lignes ou de collecteurs de courant ou pour relier les conducteurs électriques pour engager ou séparer les deux pièces d'un dispositif de couplage
B60L 53/18 - Câbles spécialement adaptés pour recharger des véhicules électriques
B60L 53/16 - Connecteurs, p.ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques
B60L 53/60 - Surveillance et commande des stations de charge
92.
METHOD FOR OPERATING AN ENERGY GENERATING SYSTEM, AND ENERGY GENERATING SYSTEM COMPRISING SAID METHOD
The application relates to a method for operating an energy generating system including a plurality of DC sub-generators which are connected in parallel with one another and in each case to a shared DC load via a DC/DC converter. Each of the DC sub-generators includes a DC source which is connected, via at least one fuse that is connected in series to the DC source, to the particular DC/DC converter that is assigned to the corresponding DC sub-generator. The method includes monitoring each of the DC sub-generators for a fault, in particular a short-circuit fault; —wherein, if the monitoring of the DC sub-generators indicates a faulty DC sub-generator; —the DC/DC converters that are not assigned to the faulty DC sub-generator are operated at a common total current IRest which corresponds to a default value. The application also relates to an energy generating system which is designed and configured to carry out the method.
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 7/35 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p.ex. batterie tampon avec des cellules sensibles à la lumière
93.
POWER CONVERTER AND METHOD FOR OPERATING A POWER CONVERTER
A power converter (10) with an inverter (20) that is configured to transform electrical power between a DC-side of the power converter (10) and an AC-side of the power converter (10), includes a first port (12) and a second port (14) arranged on the AC-side and a third port (18) and a fourth port (16) arranged on the DC-side of the power converter (10). The first port (12) is configured to be operatively connected to an AC-grid (22), the second port (14) is configured to be operatively connected to an AC-load (24), the third port (18) is configured to be operatively connected to an external power source, and the fourth port (16) is configured to be operatively connected to a rechargeable DC-power storage (26). The power converter (10) includes a DC/DC-converter (32) arranged between the third port (18) and the inverter (20), which is configured to transfer electrical power provided by the external power source from the third port (18) to the inverter (20). The inverter (20) is configured to be grid forming and to provide electrical power to the second port (14) in case of a power supply outage at the first port (12), the power converter (10) further includes a control unit (30) configured to monitor the third port (18) and to detect parameters of the electrical power provided via the third port (18).
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p.ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
H02J 9/08 - Circuits pour alimentation de puissance de secours ou de réserve, p.ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique demandant le démarrage d'une machine motrice
H02J 7/35 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p.ex. batterie tampon avec des cellules sensibles à la lumière
H02J 7/14 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge de batteries par des générateurs dynamo-électriques entraînés à vitesse variable, p.ex. sur véhicule
H02M 1/10 - Dispositions comprenant des moyens de conversion, pour permettre l'alimentation à volonté d'une charge par des sources de puissance de nature différente, p.ex. à courant alternatif ou à courant continu
94.
Power converter and method for operating a power converter
A power converter with an inverter that is configured to transform electrical power between a DC-side of the power converter and an AC-side of the power converter, includes a first port operatively connected to an AC-grid, a second port operatively connected to an AC-load, a third port connected to an external power source, and a fourth port operatively connected to a rechargeable DC-power storage. The power converter includes a DC/DC-converter between the third port and the inverter, to transfer electrical power provided by the external power source from the third port to the inverter. The inverter is configured to be grid forming and provide electrical power to the second port upon a power supply outage at the first port, the power converter includes a control unit to monitor the third port and detect parameters of the electrical power provided via the third port.
H02M 7/44 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p.ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
H02M 3/04 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques
95.
METHOD FOR OPERATING AN ENERGY SUPPLY INSTALLATION, INSTALLATION CONTROLLER FOR AN ENERGY SUPPLY INSTALLATION AND ENERGY SUPPLY INSTALLATION
The application describes a method for operating an energy supply installation (10), which is connected to an AC supply grid (12) via a transformer (14) and exchanges electrical power with the AC supply grid (12) via the transformer (14), wherein the transformer (14) is connected on a first side to the AC supply grid (12) and on a second side to an AC installation grid (18) of the energy supply installation (10), wherein the energy supply installation (10) has at least one inverter (22, 24), which exchanges electrical power between a DC unit (26, 28) on the DC side of the inverter (22, 24) and the AC installation grid (18) on the AC side of the inverter (22, 24), comprising the following steps: reception of at least one parameter of the power conversion of the at least one inverter (22, 24) by an installation controller (20), determination of a setpoint AC voltage for the AC installation grid (18) by the installation controller (20) according to the at least one parameter, transmission of the setpoint AC voltage to the transformer (14), wherein a tap changer (16) of the transformer (14) is configured to set a transformation ratio (T) in such a way that the product of the voltage in the AC supply grid (12) and the transformation ratio results in the setpoint AC voltage. The application also describes a method for operating an installation controller for an energy supply installation (10), an installation controller (20) for an energy supply installation (10) and an energy supply installation (10).
The application describes a method for protecting an installation from a short circuit. The installation comprises a DC circuit (200) comprising a DC source (201) and a DC load (210), which is connected to the DC source (201) via feed lines, wherein the connection between the DC source (201) and the DC load (210) has a connection-intrinsic impedance (202). The method comprises the following steps: - causing a short circuit of the DC source (201) by closing a switching unit (102), which is arranged in the DC circuit (200) between the DC source (201) and the DC load (210), such that the DC source (201) is short-circuited at least by means of a portion of the connection-intrinsic impedance (202) actually present in the DC circuit (200), - detecting a time profile of a short-circuit current ISC arising during the short circuit, - limiting and/or interrupting the short-circuit current ISC by opening the switching unit (102) when a termination criterion is satisfied so that damage to components of the electrical installation, in particular of the DC circuit (200), by the short-circuit current ISC is reliably prevented, and - analysing the detected short-circuit current ISC, in particular the time profile thereof, taking into account that portion of the connection-intrinsic impedance (202) between the DC source (201) and the DC load (210) by means of which the short circuit of the DC source (201) has been caused, and - checking a design of a fuse (220) present in the electrical installation, in particular in the DC circuit (200), by means of the analysis, or determining a design of a fuse (220) still to be installed in the electrical installation, in particular in the DC circuit (200), by means of the analysis. The application also describes a measurement system for carrying out the method.
H02H 3/00 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion
H02H 3/087 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge pour des systèmes à courant continu
G01R 27/16 - Mesure de l'impédance d'un élément ou d'un réseau dans lequel passe un courant provenant d'une autre source, p.ex. câble, ligne de transport de l'énergie
G01R 31/327 - Tests d'interrupteurs de circuit, d'interrupteurs ou de disjoncteurs
97.
HOUSING FOR AN ELECTRICAL DEVICE HAVING A COVER AND ELECTRICAL DEVICE HAVING A HOUSING
The disclosure relates to a housing of an electrical device for converting electrical power, including a main body and a cover. The cover closes the main body to define a self-contained interior space, wherein electrical and electronic components of the electrical device are arranged in the interior space of the housing. The cover is connected to the main body via a detchable securing structure, which may be arranged in the geometrical center of the cover. An electrical device has a housing of this type.
The invention relates to an electric system with a power converter (10) and a DC-DC converter (40). The power converter (10) is designed to transfer power between an AC side (16) of the power converter (10) and a DC side (18) of the power converter (10), wherein the AC side (16) of the power converter (10) can be connected to a grounded three-phase AC supply grid (12), and the DC side of the power converter (10) can be connected to an ungrounded DC grid (14). The power converter (10) has a bridge circuit (20), the AC connections (ACL1, ACL2, ACL3) of which can be connected to the AC side (16) of the power converter (10) via an AC relay (22) and the DC connections of which (DCL+, DCL-) can be connected to the DC side of the power converter (10) via isolating switches (26.1, 26.2). The DC-DC converter (40) has an output side (24) which faces the DC side (18) of the power converter (10), and the electric system has a measuring device (38) which is designed to measure a DC power converter voltage (UDCS) and a DC-DC output voltage (USym) being applied to the output side (24) of the DC-DC converter (40), wherein the DC power converter voltage (UDCS) and the DC-DC output voltage (USym) are applied on opposite sides of the isolating switches (26.1, 26.2). The electric system has a control unit (30) which is designed to actuate the DC-DC converter (40) such that a DC-DC output voltage (Usym) that corresponds to the value of the DC power converter voltage (UDCS) is set on the output side (24) of the DC-DC converter (40). The invention additionally relates to a method for operating an electric system.
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
H02J 1/10 - Fonctionnement de sources à courant continu en parallèle
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 3/04 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques
H02M 7/797 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu; Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif avec possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
99.
ELECTRICALLY ISOLATED PRECHARGING AND INSULATION MONITORING OF A CONVERTER FOR COUPLING A GROUNDED AC SUPPLY SYSTEM TO AN UNGROUNDED DC SUPPLY SYSTEM
The application describes a converter (10) for power transfer between an AC end (16) of the converter (10) and a DC end (18) of the converter (10), the AC end (16) of the converter (10) being connectable to a grounded three-phase AC power supply system (12), and the DC end (18) of the converter (10) being connectable to an ungrounded DC supply system (14). The converter (10) includes a bridge circuit (20), the AC terminals (ACL1, ACL2, ACL3) of which can be connected to the AC end (16) of the converter (10) via AC switches (22), and the DC terminals (DCL+, DCL-) of which can be connected to the DC end (18) of the converter (10) via isolating switches (26.1, 26.2), a DC link of the converter (10) being chargeable from the AC power supply system (12) via an electrically isolating AC precharging circuit (40). The converter also includes an insulation monitor (34) configured to measure the insulation resistance (50) of the DC end (18) of the converter (10) when the AC precharging circuit (40) is connected to the DC link (18). The application further describes a method for supplying an ungrounded DC supply system (14) from a grounded three-phase AC power supply system (12) by means of a transformerless converter (10).
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
H02M 7/797 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu; Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif avec possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
100.
APPARATUS AND METHOD FOR GROUNDING A DC VOLTAGE NETWORK
The invention relates to an electrical system comprising a power converter (10) for transferring power between an AC end (16) of the power converter (10) and a DC end (18) of the power converter (10), the AC end (16) of the power converter (10) being connectable to a grounded three-phase AC power supply system (12) and the DC end (18) of the power converter (10) being connectable to an ungrounded DC supply system (14). The power converter (10) has a bridge circuit (20), the AC terminals (ACL1, ACL2, ACL3) of which can be connected to the AC end (16) of the power converter (10) and the DC ends (DCL+, DCL-) of which can be connected to the DC end (18) of the power converter (10), the power converter (10) being designed in such a way that a grounding through a connected AC power supply system (12) results in a grounding on the DC end (18) of the power converter. The electrical system comprises a grounding circuit connected to the DC supply system (14) and a control unit (30), the control unit (30) being designed to detect a disconnection of the power converter (10) from the AC power supply system (12) and to establish a grounding of the DC supply system (14) by means of the grounding circuit. The invention also relates to a method for operating an electrical system.
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02H 11/00 - Circuits de protection de sécurité pour empêcher la commutation de mise en service dans le cas où une condition électrique de travail indésirable pourrait en résulter
H02J 1/10 - Fonctionnement de sources à courant continu en parallèle
H02M 7/797 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu; Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif avec possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
