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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：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
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.
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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
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.
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公开(公告)号：US10673353B2
公开(公告)日：2020-06-02
申请号：US15993019
申请日：2018-05-30
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Franziska Brem , Francisco Canales
IPC: H02M7/5387 , H02J7/00 , H02M1/36 , H02M7/483 , H02M1/32 , H02S40/32 , H02S40/38 , H02J7/35 , H02M1/00 , H02J3/38 , H02J7/34
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.
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公开(公告)号：US20240112849A1
公开(公告)日：2024-04-04
申请号：US18475559
申请日：2023-09-27
Applicant: ABB Schweiz AG
Inventor： Jedrzej Banaszczyk , Wojciech Piasecki , Michal Rzepecki , Filip Grecki , Uwe Drofenik
CPC classification number: H01F27/2823 , H01F27/288 , H01F27/325
Abstract: A transformer coil comprises low and high voltage windings wound on a supporting construction and immersed in a main insulation material. The transformer coil has also a first barrier arranged proximate the low voltage winding and a second barrier arranged proximate the high voltage winding. Each of the first and second barriers is gas-tight and semiconductive so that gas bubbles potentially released during immersion in the main insulation material are unable to migrate to a high electric field region during the casting process or during apparatus operation.
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Patent Agency Ranking
公开(公告)号：US20230048596A1
公开(公告)日：2023-02-16
申请号：US17884723
申请日：2022-08-10
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Francisco Canales
IPC: H02M3/335
Abstract: A bi-directional medium voltage converter topology includes an n-pulse line-interphase-transformer, LIT; a plurality of bi-directional medium voltage, MV converters connected to the LIT on an AC side thereof and connected in parallel on a DC side thereof; a bi-directional multi-stage DC/DC converter connected to the plurality of bi-directional MV converters; and a bi-directional low voltage, LV, DC/DC converter; wherein the multi-stage DC/DC converter and the LV DC/DC converter are connected to each other galvanically insulated.
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公开(公告)号：US10797586B2
公开(公告)日：2020-10-06
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 , H01L25/065 , H03K17/567 , H03K17/687
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.
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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
Inventor： Bernhard Wunsch , Uwe Drofenik , Stanislav Skibin , Gernot Riedel , Ville Samuel Forsstrom
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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公开(公告)号：US20250054675A1
公开(公告)日：2025-02-13
申请号：US18566355
申请日：2022-06-01
Applicant: ABB Schweiz AG , ABB E-mobility B.V.
Inventor： Uwe Drofenik , Filip Grecki
Abstract: A helicoidal guide is provided. The helicoidal guide is configured and shaped for cooling an inductor and/or a transformer with a core and a first coil having a spatial gap between the core and the first coil, the helicoidal guide being placeable within the spatial gap and configured to guide a flow of coolant through the spatial gap, wherein the coolant is in direct contact with the core and/or the first coil.
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公开(公告)号：US12149178B2
公开(公告)日：2024-11-19
申请号：US17753961
申请日：2020-09-18
Applicant: ABB Schweiz AG
Inventor： Uwe Drofenik , Thomas Bernhard Gradinger , Francisco Canales
Abstract: A DC/DC converter which includes a first DC link, the first DC link can be a first DC link capacitor; a first plurality of N>1 converter bridges connected in parallel to the first DC link; and a transformer, the transformer can be a medium frequency transformer. The transformer includes a primary side and a secondary side, the primary side including at least one primary winding. The converter further includes a first plurality of N impedance elements, for each converter bridge, a respective impedance element of the first plurality of impedance elements is connected between the converter bridge and the at least one primary winding.
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