MAGNETIC ADJUSTMENT MEMBER FOR MULTI-PHASE INDUCTOR

    公开(公告)号:US20200043642A1

    公开(公告)日:2020-02-06

    申请号:US16598155

    申请日:2019-10-10

    Applicant: ABB Schweiz AG

    Abstract: A multi-phase inductor includes a core made of a magnetic material; at least two phase windings surrounding the core for inducing a magnetic field in the core, such that a common mode inductance (LCM) is provided for the at least two phase windings; and an adjustment member made of a magnetic material, which adjustment member has at least two legs, which are interconnected with each other at an inner end and which are touching the core at an outer end to provide a differential mode inductance (LDM) for the at least two phase windings; wherein the outer end of each leg of the adjustment member overlays an axial side of the core and/or each leg of the adjustment member has a varying thickness between the inner end and the outer end to adjust the differential mode inductance (LDM).

    Electric converter with compact module arrangement for subsea applications

    公开(公告)号:US09668376B2

    公开(公告)日:2017-05-30

    申请号:US14903013

    申请日:2014-07-02

    Applicant: ABB Schweiz AG

    CPC classification number: H05K7/20263 H02M7/003 H05K7/1432 H05K7/20927

    Abstract: An electric converter system, including a housing configured to receive a dielectric fluid, at least two electric modules, each including a first space and a second space, the first space including a connecting portion and a cooling system configured to circulate the dielectric fluid to cool the electric modules. The converter system further includes an inter module bus bar portion including a complementary connecting portion, whereby the connecting portion is configured to be connected to the complementary connecting portion of the inter module bus bar portion, whereby the inter module bus bar portion is configured to interconnect one of the at least two electric modules with the other of the at least two electric modules, said one electric module being proximate to said other electric module, and whereby the connecting portion, the first space and the second space of each electric module are arranged in series.

    Method and a Device for Compensating a Faulty Switch in a Multi-Level Flying Capacitor Converter

    公开(公告)号:US20230083355A1

    公开(公告)日:2023-03-16

    申请号:US17943693

    申请日:2022-09-13

    Applicant: ABB Schweiz AG

    Abstract: A system and method for compensating a faulty switch in a multi-level flying capacitor converter includes a converter capacitor arranged in parallel to an input, a first and second converter switches arranged respectively between first and second ends of the converter capacitor, first and second bypass switches respectively arranged in parallel to the first and second converter switches, wherein operation includes detecting a faulty converter level that includes at least one of the first and second converter switches, discharging all capacitors arranged in parallel to the input of the multi-level converter, wherein all capacitors comprise the converter capacitors and an input capacitor; closing the first and second bypass switches of the faulty converter level; adapting a modulation of the converter switches of the other converter levels; and restarting the multi-level converter.

    Magnetic adjustment member for multi-phase inductor

    公开(公告)号:US11636968B2

    公开(公告)日:2023-04-25

    申请号:US16598155

    申请日:2019-10-10

    Applicant: ABB Schweiz AG

    Abstract: A multi-phase inductor includes a core made of a magnetic material; at least two phase windings surrounding the core for inducing a magnetic field in the core, such that a common mode inductance (LCM) is provided for the at least two phase windings; and an adjustment member made of a magnetic material, which adjustment member has at least two legs, which are interconnected with each other at an inner end and which are touching the core at an outer end to provide a differential mode inductance (LDM) for the at least two phase windings; wherein the outer end of each leg of the adjustment member overlays an axial side of the core and/or each leg of the adjustment member has a varying thickness between the inner end and the outer end to adjust the differential mode inductance (LDM).

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