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：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：US20240290530A1

公开(公告)日：2024-08-29

申请号：US18566237

申请日：2022-06-01

Applicant: ABB Schweiz AG

Inventor： Uwe Drofenik

IPC: H01F27/08 ,  H01F27/02

CPC classification number: H01F27/085 ,  H01F27/025

Abstract: A transformer arrangement is provided. The transformer arrangement includes a plurality of stacked transformers, each transformer including a transformer core, a first winding wound around the transformer core, a second winding, a spatial gap configured to allow a cooling of the transformer by a coolant fluid flowing in the spatial gap, and a support structure supporting the transformers in the plurality of stacked transformers, wherein the support structure and the spatial gaps of the transformers in the plurality of stacked transformers are configured to form a cooling duct for the coolant fluid.

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

Inventor： Bernhard Wunsch ,  Uwe Drofenik ,  Stanislav Skibin ,  Gernot Riedel ,  Ville Samuel Forsstrom

IPC: H01F17/06 ,  H01F41/02 ,  H01F41/04 ,  H01F27/28 ,  H03H7/01 ,  H02M1/44

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).

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

IPC: H02J50/10 ,  H02J7/00 ,  H01F27/24 ,  H01F27/30 ,  H01F27/32

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.

公开(公告)号：US10386403B2

公开(公告)日：2019-08-20

申请号：US16048807

申请日：2018-07-30

Applicant: ABB Schweiz AG

Inventor： Uwe Drofenik ,  Caroline Andersson

IPC: H03K17/955 ,  G01R31/02 ,  H01G4/12 ,  H01G4/35 ,  H01L49/02

Abstract: A failure tolerant capacitor device comprises a plurality of capacitor elements connected in parallel. For each capacitor element, there is a detection element and a connection element. The detection element is adapted for detecting a capacitor voltage across the capacitor element falling below a predefined voltage threshold and/or for detecting a capacitor current through the capacitor element raising above a predefined current threshold and for turning off the connection element when the capacitor voltage is below the predefined voltage threshold and/or the capacitor current is above the predefined current threshold. The connection element is adapted for disconnecting the capacitor element from other ones of the plurality of parallel connected capacitor elements when turned off. The detection element and the connection element each include a transistor.

公开(公告)号：US20180351474A1

公开(公告)日：2018-12-06

申请号：US15993019

申请日：2018-05-30

Applicant: ABB Schweiz AG

Inventor： Uwe Drofenik ,  Franziska Brem ,  Francisco Canales

IPC: H02M7/5387 ,  H02S40/32 ,  H02S40/38 ,  H02J7/00 ,  H02J7/35

Abstract: A converter cell for a modular converter includes at least one power semiconductor switch for switching a cell current through the converter cell; a cell capacitor interconnected with the at least one power semiconductor switch, such that the cell capacitor is loadable by the cell current; a controller for switching the at least one power semiconductor switch, wherein the controller is supplyable with auxiliary power from the cell capacitor; and a photovoltaic cell for providing initial and/or further auxiliary power to the controller.

公开(公告)号：US20180348285A1

公开(公告)日：2018-12-06

申请号：US16048807

申请日：2018-07-30

Applicant: ABB Schweiz AG

Inventor： Uwe Drofenik ,  Caroline Andersson

IPC: G01R31/02 ,  H01G4/12 ,  H01G4/35 ,  H01L49/02 ,  H03K17/955

CPC classification number: G01R31/028 ,  H01G4/1272 ,  H01G4/35 ,  H01L28/40 ,  H03K17/955

Abstract: A failure tolerant capacitor device comprises a plurality of capacitor elements connected in parallel. For each capacitor element, there is a detection element and a connection element. The detection element is adapted for detecting a capacitor voltage across the capacitor element falling below a predefined voltage threshold and/or for detecting a capacitor current through the capacitor element raising above a predefined current threshold and for turning off the connection element when the capacitor voltage is below the predefined voltage threshold and/or the capacitor current is above the predefined current threshold. The connection element is adapted for disconnecting the capacitor element from other ones of the plurality of parallel connected capacitor elements when turned off. The detection element and the connection element each include a transistor.