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公开(公告)号：US12119750B2
公开(公告)日：2024-10-15
申请号：US17753963
申请日：2020-09-18
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Ki-Bum Park , Thomas Bernhard Gradinger
CPC classification number: H02M3/33523 , H02M1/0009 , H02M1/0058 , H02M3/01 , H02M3/015 , H02M3/33571 , H02M7/493
Abstract: A resonant DC/DC converter which has a first DC link, preferably including a first DC link capacitor; a DC/AC converter which has a first plurality of N>1 converter bridges connected in parallel to the first DC link; each converter bridge comprising a plurality of switches each of which may be switched between a conducting state and a non-conducting state. The resonant DC/DC converter also includes an AC intermediate circuit having an input connected to an output of the DC/AC converter and comprising: a transformer, preferably a medium frequency transformer, having a primary side and a secondary side; the primary side comprising at least one primary winding; a first plurality of N capacitors, wherein for each converter bridge, a different one from the first plurality of capacitors is connected between said converter bridge and the at least one primary winding.
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公开(公告)号：US20220385176A1
公开(公告)日：2022-12-01
申请号：US17753963
申请日：2020-09-18
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Ki-Bum Park , Thomas Bernhard Gradinger
Abstract: A resonant DC/DC converter which has a first DC link, preferably including a first DC link capacitor; a DC/AC converter which has a first plurality of N>1 converter bridges connected in parallel to the first DC link; each converter bridge comprising a plurality of switches each of which may be switched between a conducting state and a non-conducting state. The resonant DC/DC converter also includes an AC intermediate circuit having an input connected to an output of the DC/AC converter and comprising: a transformer, preferably a medium frequency transformer, having a primary side and a secondary side; the primary side comprising at least one primary winding; a first plurality of N capacitors, wherein for each converter bridge, a different one from the first plurality of capacitors is connected between said converter bridge and the at least one primary winding.
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公开(公告)号：US20210336440A1
公开(公告)日：2021-10-28
申请号：US17366488
申请日：2021-07-02
Applicant: ABB Schweiz AG
Inventor： Francisco Canales , Ki-Bum Park
IPC: H02J3/34 , B60L53/122
Abstract: A charging station for electric vehicles includes a central part for converting a grid AC voltage from an electrical grid into a high frequency AC voltage; a distribution network for distributing the high frequency AC voltage; and a plurality of coils directly connected to the distribution network, wherein each coil is adapted for transferring energy to an electrical vehicle.
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公开(公告)号：US20190190272A1
公开(公告)日：2019-06-20
申请号：US16273573
申请日：2019-02-12
Applicant: ABB Schweiz AG
Inventor： Ki-Bum Park , Thiago Batista Soeiro , Mario Schweizer , Silvia Mastellone
CPC classification number: H02J3/383 , H02M3/33523 , H02S40/32 , Y02E10/563
Abstract: An inverter system for a photovoltaic panel includes: an inverter adapted for transforming a DC voltage from the photovoltaic panel into an AC voltage to be supplied to an electrical grid; a DC link interconnected with the inverter and providing a positive DC link output connectable to a positive pole of the photovoltaic panel and a negative DC link output connectable to a negative pole of the photovoltaic panel; a switch for disconnecting the negative pole of the photovoltaic panel from the DC link; and a controller for controlling the inverter and the switch; wherein the controller is adapted for opening the switch, such that the photovoltaic panel is solely supplyable by the positive DC link output.
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Patent Agency Ranking
公开(公告)号：US20230051317A1
公开(公告)日：2023-02-16
申请号：US17975711
申请日：2022-10-28
Applicant: ABB Schweiz AG
Inventor： Thomas Bernhard Gradinger , Gabriel Ignacio Ortiz , Uwe Drofenik , Ki-Bum Park , Bernhard Wunsch
Abstract: A power electronic converter includes a plurality of converter cells, each comprising an inductive power transfer stage having a coupled inductor coupling first and second sides of the converter cell, wherein the inductor comprises a first winding around a first magnetic core and a second winding around a second magnetic core; wherein the first winding and the first magnetic core are separated from the second winding and the second magnetic core by a flat electric insulation layer that provides electric insulation between the first and second sides of the converter cell; wherein at least two of the coupled inductors are arranged so that their insulation layers form a single contiguous insulation layer.
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公开(公告)号：US11563370B2
公开(公告)日：2023-01-24
申请号：US17009135
申请日：2020-09-01
Applicant: ABB Schweiz AG
Inventor： Sami Pettersson , Mario Schweizer , Ki-Bum Park , Francisco Canales
Abstract: A protection circuit for a power converter with cascaded bipolar and/or unipolar semiconductors is provided. The protection circuit includes at least one comparator circuit which is adapted to monitor a voltage characteristic on a collector-emitter path of at least one semiconductor which is arranged in a polarity selection stage of the power converter and/or to monitor a voltage characteristic on at least one capacitor, which is arranged in the power converter. The at least one comparator circuit is further adapted to output an electrical signal, representing the voltage characteristic of the semiconductor and/or the at least one capacitor to at least one evaluation unit. The at least one evaluation unit is further adapted to evaluate the result from the at least one comparator circuit and to deactivate the semiconductors in case that the voltage characteristic of the semiconductors and/or the capacitors deviate from a predetermined threshold.
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公开(公告)号：US20230050293A1
公开(公告)日：2023-02-16
申请号：US17977428
申请日：2022-10-31
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Francisco Canales , Ki-Bum Park
Abstract: A charging system for electric vehicles includes a line interphase transformer, LIT-based rectifier configured for connecting an input of the LIT-based rectifier to an AC medium-voltage power signal and for outputting a medium-voltage DC-signal; a modular DC/DC converter with large step-down gain is configured for transforming the medium-voltage DC-signal into a medium-voltage HF-AC-signal; and a medium-frequency transformer, MFT, is configured for transforming the medium-voltage HF-AC-signal into a low-voltage HF-AC-signal for the at least one charging box.
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公开(公告)号：US20230050057A1
公开(公告)日：2023-02-16
申请号：US17975724
申请日：2022-10-28
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Thomas Bernhard Gradinger , Francisco Canales , Gabriel Ignacio Ortiz , Ki-Bum Park , Daniel Rothmund , Levy Costa
Abstract: A power supply system includes a power feeding system for transforming an AC medium-voltage power signal from a medium-voltage grid into a low-voltage power signal for feeding an electricity consumer site. The power supply system further includes a low-voltage multiphase converter for transforming a low-voltage signal into a low-voltage multiphase signal. The multiphase converter is arranged antiparallel to the power feeding system, and an LV/MV multiphase transformer for transforming the low-voltage multiphase signal into an output-signal that is conformant to the AC medium-voltage power signal.
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公开(公告)号：US20210119442A1
公开(公告)日：2021-04-22
申请号：US17009135
申请日：2020-09-01
Applicant: ABB Schweiz AG
Inventor： Sami Pettersson , Mario Schweizer , Ki-Bum Park , Francisco Canales
Abstract: A protection circuit for a power converter with cascaded bipolar and/or unipolar semiconductors is provided. The protection circuit includes at least one comparator circuit which is adapted to monitor a voltage characteristic on a collector-emitter path of at least one semiconductor which is arranged in a polarity selection stage of the power converter and/or to monitor a voltage characteristic on at least one capacitor, which is arranged in the power converter. The at least one comparator circuit is further adapted to output an electrical signal, representing the voltage characteristic of the semiconductor and/or the at least one capacitor to at least one evaluation unit. The at least one evaluation unit is further adapted to evaluate the result from the at least one comparator circuit and to deactivate the semiconductors in case that the voltage characteristic of the semiconductors and/or the capacitors deviate from a predetermined threshold.
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