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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
摘要： 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.
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公开(公告)号：EP4135186A1
公开(公告)日：2023-02-15
申请号：EP21191272.0
申请日：2021-08-13
申请人： ABB E-mobility B.V.
发明人： DROFENIK, Uwe , CANALES, Francisco
摘要： The invention relates to a bi-directional medium voltage converter topology (100) comprising an n-pulse line-interphase-transformer, LIT, (102); a plurality of bi-directional medium voltage, MV converters (104, 105, 106) connected to the LIT on AC side and connected in parallel on DC side; a bi-directional multi-stage DC/DC converter (108) connected to the plurality of bi-directional MV converters (104, 105, 106); and a bi-directional low voltage, LV, DC/DC converter (112); wherein the multi-stage DC/DC converter (108) and the LV DC/DC converter (112) are connected to each other galvanically insulated.
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3.发明公开
公开(公告)号：EP4099347A1
公开(公告)日：2022-12-07
申请号：EP21177413.8
申请日：2021-06-02
申请人： ABB E-mobility B.V.
发明人： DROFENIK, Uwe
摘要： A transformer arrangement (100) comprising:
a plurality (102) of stacked transformers, each transformer (101) including
a transformer core (104),
a first winding (106) wound around the transformer core,
a second winding (108),
a spatial gap (110) configured to allow a cooling of the transformer by a coolant fluid flowing in the spatial gap;
a support structure (120) supporting the transformers in the plurality of stacked transformers;
wherein the support structure (120) and the spatial gaps of the transformers in the plurality of stacked transformers are configured to form a cooling duct (130) for the coolant fluid.-
公开(公告)号：EP4135187A1
公开(公告)日：2023-02-15
申请号：EP21191282.9
申请日：2021-08-13
申请人： ABB E-mobility B.V.
发明人： DROFENIK, Uwe , CANALES, Francisco
摘要： The invention relates to a bi-directional medium voltage converter (200) for a LIT-based bi-directional medium voltage converter topology (202), comprising active medium voltage switches (220) that comprise low voltage switches (222) connected in series and/or switch-cells (222) in cascode-configuration.
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公开(公告)号：EP4459304A1
公开(公告)日：2024-11-06
申请号：EP23171626.7
申请日：2023-05-04
发明人： DROFENIK, Uwe
摘要： A rectifier including at least two semiconductor devices connected in parallel, a first conductor provided in series with a first one of the at least two semiconductor devices, the first conductor forming a first winding of a coupled inductor, and a second conductor provided in series with a second of the at least two semiconductor devices, the second conductor forming a second winding of the coupled inductor. The first winding and the second winding each include a corresponding number of turns arranged in an antiparallel manner so that magnetic fields generated by the first winding and the second winding in the coupled inductor are mutually opposite when a current flows through the at least two semiconductor devices. The rectifier further includes a third conductor having a first and a second node, wherein the third conductor forms a third winding of the coupled inductor, and an indicator circuit connected to the first and second node. The indicator circuit is configured for indicating a presence of an electrical signal at the first and second node, and for sending a warning signal when powered by a current received by the indicator circuit from the third conductor.
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公开(公告)号：EP4290536A1
公开(公告)日：2023-12-13
申请号：EP22178097.6
申请日：2022-06-09
摘要： The present invention relates to an electrical device. The electrical device (1) comprises:
- a magnetic core (2);
- a bobbin (10) extending about and partially covering the magnetic core (2),
- wherein the bobbin (10) is made of a thermally conductive dielectric material,
- wherein the bobbin (10) further comprises
- an outer body (11) connectable to an inner body (12),
- wherein the inner body (12) comprises at least a first contact element (14) being formed as a rib that is configured to directly contact a surface (3) of the magnetic core (2).-
公开(公告)号：EP4135184A1
公开(公告)日：2023-02-15
申请号：EP21191279.5
申请日：2021-08-13
申请人： ABB E-mobility B.V.
IPC分类号： H02M7/219 , H02M7/23 , H02M7/493 , H02M1/12 , H02M5/10 , H02M5/14 , H02M5/18 , H02M7/162 , H02M7/757 , H02M7/797
摘要： The invention relates to a multi-pulse line-interphase transformer converter (300) comprising a magnetic part (302) and an electric part (304), wherein the electric part (304) comprises magnetic components configured to be connected to a three-phase AC grid (320), and the electric part (304) comprises a multi-phase voltage system configured to be connected to a common DC capacitor (416). The electric part (304) is configured to split each AC grid phase (414) n times into two phases, resulting in a plurality of intermediate phases (432) at an internal interface (324), each intermediate phase (432) corresponding to a pulse of the multi-pulse line-interphase transformer converter (300). The intermediate phases (432) are connected to the multi-phase voltage system (300). The multi-phase voltage system comprises bridges (406) with actively controlled switches (402); and the bridges (406) are connected in parallel to the common DC capacitor (416).
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