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

IPC: H02J7/02 ,  H02M3/335 ,  B60L53/00

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.

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

IPC: B60L53/67 ,  B60L55/00

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.

公开(公告)号：US20230049948A1

公开(公告)日：2023-02-16

申请号：US17886286

申请日：2022-08-11

Applicant: ABB Schweiz AG

Inventor： Uwe Drofenik ,  Francisco Canales

IPC: H02M3/335 ,  H02M1/08

Abstract: A LIT-based bi-directional medium voltage converter topology includes active medium voltage switches that comprise low voltage switches connected in series and/or switch-cells in a cascode-configuration.

公开(公告)号：US11480602B2

公开(公告)日：2022-10-25

申请号：US16925999

申请日：2020-07-10

Applicant: ABB Schweiz AG

Inventor： Uwe Drofenik ,  Thomas Gradinger ,  Francisco Canales

IPC: H01F27/32 ,  G01R31/12 ,  G01R31/62 ,  G01R31/14 ,  H01F27/40 ,  H02H3/22 ,  H01F38/00

Abstract: Transformer assembly including a first transformer stage having a plurality of first-stage transformer cells; and a second transformer stage. An input of the second transformer stage is connected to an output of the first transformer stage. A lightning impulse breakdown voltage of a transformer cell of the second stage is at least double of a lightning impulse breakdown voltage of transformer cells of the first stage.

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

IPC: H02H7/122 ,  H02H7/125 ,  H02H1/00

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.

公开(公告)号：US20200059155A1

公开(公告)日：2020-02-20

申请号：US16663868

申请日：2019-10-25

Applicant: ABB Schweiz AG

Inventor： Uwe Drofenik ,  Francisco Canales ,  Chunlei Liu ,  Franziska Brem

IPC: H02M1/32 ,  H03K17/567 ,  H03K17/687 ,  H01L25/065

Abstract: A power module included a plurality of normally-on semiconductor switches based on a wide bandgap substrate, the normally-on semiconductor switches connected in parallel; and a balancing unit including a capacitor and a balancing semiconductor switch connected in series, which are connected in parallel to the normally-on semiconductor switches.

公开(公告)号：US20240364211A1

公开(公告)日：2024-10-31

申请号：US18643393

申请日：2024-04-23

Applicant: ABB Schweiz AG

Inventor： Hemant Bishnoi ,  Sami Pettersson ,  Francisco Canales

IPC: H02M1/32 ,  H02M1/00 ,  H02M3/07

CPC classification number: H02M1/325 ,  H02M1/0009 ,  H02M1/0095 ,  H02M3/07

Abstract: A flying capacitor converter comprising a protection circuit includes at least two cells, each having a capacitor having a first and second DC sides, a first switch connected to the first DC side and to a capacitor of a following cell or an output circuit, and a second switch 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, only one of the first and second switches is in a conducting state, and during a fault operation where the first switch has a short circuit failure and the second switch has a conducting state, the protection circuit is configured to keep the second switch switched-on.

公开(公告)号：US20220345045A1

公开(公告)日：2022-10-27

申请号：US17753961

申请日：2020-09-18

Applicant: ABB Schweiz AG

Inventor： Uwe Drofenik ,  Thomas Bernhard Gradinger ,  Francisco Canales

IPC: H02M3/335 ,  H02M1/00 ,  H02M7/48 ,  H02M7/493 ,  H02M3/00

Abstract: A DC/DC converter which includes a first DC link, preferably a first DC link capacitor; a first plurality of N>1 converter bridges connected in parallel to the first DC link; and a transformer, preferably a medium frequency transformer. The transformer includes a primary side and a secondary side, wherein the primary side includes at least one primary winding. The converter further comprises a first plurality of N impedance elements, wherein for each converter bridge, a different one from the first plurality of impedance elements is connected between said converter bridge and the at least one primary winding.

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.

公开(公告)号：US20210018554A1

公开(公告)日：2021-01-21

申请号：US16925999

申请日：2020-07-10

Applicant: ABB Schweiz AG

Inventor： Uwe Drofenik ,  Thomas Gradinger ,  Francisco Canales

IPC: G01R31/12 ,  G01R31/14 ,  G01R31/62 ,  H01F27/40

Abstract: Transformer assembly including a first transformer stage having a plurality of first-stage transformer cells; and a second transformer stage. An input of the second transformer stage is connected to an output of the first transformer stage. A lightning impulse breakdown voltage of a transformer cell of the second stage is at least double of a lightning impulse breakdown voltage of transformer cells of the first stage.