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    CONVERTER AND METHOD OF OPERATING A CONVERTER
    13.
    发明公开
    CONVERTER AND METHOD OF OPERATING A CONVERTER 审中-公开

    公开(公告)号：EP4459646A1

    公开(公告)日：2024-11-06

    申请号：EP23171597.0

    申请日：2023-05-04

    Applicant: ABB E-mobility B.V. ,  ABB SCHWEIZ AG

    Inventor： DROFENIK, Uwe ,  CANALES, Francisco ,  GARCIA-FERRE, Francisco ,  ROTHMUND, Daniel ,  CZYZ, Piotr

    IPC: H01F27/08 ,  H05K7/20

    Abstract: A converter is described. The converter includes at least one medium voltage stage including an inverter circuit, at least one medium frequency transformer, a first winding of the transformer being electrically connected to the medium voltage stage, at least one DC output stage, the DC output stage being electrically connected to a second winding of the medium frequency transformer, and a plurality of containers having a volume. Each container is configured for holding an insulating fluid inside the volume. Each container has provided within the container one of the at least one medium frequency transformer to be electrically insulated by the fluid. The container includes at least one connector for fluidly connecting the volume with a fluid circuit. A first container of the plurality of containers is fluidly connected to a second container of the plurality of containers via the connector, the at least one connector comprising a valve for opening and/or closing the connector, wherein the valve is configured for fluidly separating the first container from the second container when the connector is closed by the valve.

    INVERTER ARRANGEMENT EMPLOYING PHOTOVOLTAIC ENERGY DELIVERY ELEMENTS
    14.
    发明公开
    INVERTER ARRANGEMENT EMPLOYING PHOTOVOLTAIC ENERGY DELIVERY ELEMENTS 审中-公开

    公开(公告)号：EP3633816A1

    公开(公告)日：2020-04-08

    申请号：EP18197993.1

    申请日：2018-10-01

    Applicant: ABB Schweiz AG

    Inventor： DA SILVEIRA POSTIGLIONE, Cicero ,  DIJKHUIZEN, Frans ,  SVENSSON, Jan ,  NAMI, Alireza ,  CANALES, Francisco

    IPC: H02J3/38 ,  H02M7/483 ,  H02M7/487

    Abstract: An inverter arrangement (10A) based on photovoltaic elements comprises at least two strings comprising switching elements, which strings are connected to at least two AC terminals (AC1, AC2, AC3), where at least one of the strings is a string of submodules (SiA, S2A, S3A, S4A, S5A, S6A, S1B, S2B, S3B, S4B, S5B, S6B, S1C, S2C, S3C, S4C, S5C, S6C), each submodule comprising at least two switching elements and an energy storage element, having DC terminals and being configured to make a voltage contribution to the forming of an AC voltage on an AC terminal, and a number of input stages (IS1, IS2, IS3, IS4, IS5, IS6) each comprising at least one energy delivery element, where at least some of the energy delivery elements are photovoltaic elements, each input stage being connected to DC terminals of a corresponding for delivering power to or from at least one AC terminal (AC1, AC2, AC3) when the corresponding submodule contributes to the forming of the AC voltage on the AC terminal.

    MEDIUM-FREQUENCY TRANSFORMER-BASED DOUBLE-ISOLATED AUXILIARY SUPPLY FOR MEDIUM-VOLTAGE DC/DC CONVERTERS
    15.
    发明公开
    MEDIUM-FREQUENCY TRANSFORMER-BASED DOUBLE-ISOLATED AUXILIARY SUPPLY FOR MEDIUM-VOLTAGE DC/DC CONVERTERS 审中-公开

    公开(公告)号：EP4529013A1

    公开(公告)日：2025-03-26

    申请号：EP23198343.8

    申请日：2023-09-19

    Applicant: ABB SCHWEIZ AG ,  ABB E-mobility B.V.

    Inventor： ROTHMUND, Daniel ,  CANALES, Francisco ,  BAUMANN, David ,  CHRISTEN, Daniel ,  COSTA, Levy

    IPC: H02M3/335 ,  H02M3/00 ,  H02M1/00

    Abstract: A converter (100) for transferring power from a medium-voltage, MV, to a low-voltage, LV, side is provided. The converter includes at least one DC/AC cell (10) configured for generating an AC voltage from a MV DC voltage, the DC/AC cell having a MV AC terminal (12). The converter further includes at least one AC/DC cell (14) configured for generating a DC voltage from a LV AC voltage, the AC/DC cell having a LV AC terminal (16). The converter also has a magnetic core (18), a LV winding (20) being wound around the magnetic core and having a LV winding terminal (22), the LV winding terminal being connected to the LV AC terminal of the at least one AC/DC cell. The converter has a MV winding (24) being wound around the magnetic core and having a MV winding terminal (22), the MV winding terminal being connected to the MV AC terminal of the at least one DC/AC cell. The converter includes an auxiliary unit (26) having an auxiliary winding (28) being wound around the same magnetic core and having an auxiliary winding terminal (30), the auxiliary winding terminal being connected to control auxiliary circuits for operating the MV DC/AC cell and a galvanic insulation to galvanically insulate the LV winding from the MV winding and the auxiliary winding. The galvanic insulation between the LV and the MV winding and the auxiliary winding is configured to withstand the Basic Insulation Level (BIL) of the converter.

    POWER CONVERSION SYSTEM
    16.
    发明公开
    POWER CONVERSION SYSTEM 审中-公开

    公开(公告)号：EP4418520A1

    公开(公告)日：2024-08-21

    申请号：EP23156576.3

    申请日：2023-02-14

    Applicant: ABB SCHWEIZ AG

    Inventor： ABDELHAKIM, Ahmed ,  CANALES, Francisco

    IPC: H02M7/06

    CPC classification number: H02M1/0077 ,  H02M1/0093 ,  H02M7/08 ,  H02M7/23

    Abstract: A power conversion system (1) for powering an electrolyser, comprising K primary rectifier bridges (3), J auxiliary rectifier bridges (9), and Z DC/DC converters (15), each connected to an auxiliary rectifier bridge (9), wherein a first DC link (7) shared by the K primary rectifier bridges (3) is series connected with Z second DC links (10) of the Z DC/DC converters (15), thus forming an output of the power conversion system (1). Further, the power conversion system (1) comprises a transformer (19) with secondary windings connected to the K primary rectifiers (3) and the J auxiliary rectifiers (9) in various configurations.

    POWER SUPPLY SYSTEM FOR BIDIRECTIONAL ENERGY FLOW
    17.
    发明公开
    POWER SUPPLY SYSTEM FOR BIDIRECTIONAL ENERGY FLOW 审中-公开

    公开(公告)号：EP3904151A1

    公开(公告)日：2021-11-03

    申请号：EP20172515.7

    申请日：2020-04-30

    Applicant: ABB Schweiz AG

    Inventor： DROFENIK, Uwe ,  GRADINGER, Thomas ,  CANALES, Francisco ,  ORTIZ, Gabriel ,  PARK, Ki-Bum ,  ROTHMUND, Daniel ,  COSTA, Levy

    IPC: B60L55/00 ,  H02J3/00

    Abstract: The invention relates to a power supply system (10), particularly for a bidirectional energy flow between a medium-voltage grid (11) and a low-voltage electricity consumer site (60). The system (10) comprises a power feeding system (25), configured for transforming an AC medium-voltage power signal from the medium-voltage grid (11) into a low-voltage power signal (29) for feeding the electricity consumer site (60). Furthermore, it comprises a low-voltage multiphase converter (40), configured for transforming a low-voltage signal (41, 42) into a low-voltage multiphase signal (49), wherein the multiphase converter (40) is arranged antiparallel to the power feeding system (25); and an LV/MV multiphase transformer (50), configured for transforming the low-voltage multiphase signal (49) into an output-signal (59) that is conformant to the AC medium-voltage power signal (11).

    FLYING CAPACITOR CONVERTER AND METHOD FOR PROTECTING A FLYING CAPACITOR CONVERTER
    19.
    发明公开
    FLYING CAPACITOR CONVERTER AND METHOD FOR PROTECTING A FLYING CAPACITOR CONVERTER 审中-公开

    公开(公告)号：EP4456395A1

    公开(公告)日：2024-10-30

    申请号：EP23169996.8

    申请日：2023-04-26

    Applicant: ABB SCHWEIZ AG

    Inventor： BISHNOI, Hemant ,  PETTERSSON, Sami ,  CANALES, Francisco

    IPC: H02M1/00 ,  H02M1/08 ,  H02M1/32 ,  H02M7/483 ,  H02M7/487

    Abstract: The invention relates to a flying capacitor converter (100) comprising a protection circuit (170) for protecting the flying capacitor converter (100) from a short-circuit failure of a switch. The flying capacitor converter (100) comprises at least two cells. Each cell comprises a capacitor having a first DC side and a second DC side, a first switch (122, 132) connected to the first DC side and to a capacitor of a following cell or an output circuit, and a second switch (124, 134) connected to the second DC side and to the capacitor of the following cell or the output circuit. During a nominal non-fault operation of the flying capacitor converter (100), only one of the first switch (122, 132) and the second switch (124, 134) is in a conducting state, and during a fault operation where the first switch (122, 132) has a short-circuit failure and the second switch (124, 134) has a conducting state, the protection circuit (170) is configured to keep the second switch (124, 134) switched-on.

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