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1. 发明申请

WO2022027619A1 MULTI-LEVEL POWER CONVERTOR AND METHOD FOR MULTI-LEVEL POWER CONVERTOR 审中-公开
公开(公告)号：WO2022027619A1
公开(公告)日：2022-02-10
申请号：PCT/CN2020/107893
申请日：2020-08-07
申请人： ABB SCHWEIZ AG , YANG, Fu , SHI, Yaming , ZHANG, Jing
发明人： YANG, Fu , SHI, Yaming , ZHANG, Jing
IPC分类号： H02M7/483
摘要： A multi-level power convertor (100) and a method for a multi-level power convertor (100) are disclosed. The multi-level power convertor (100) comprises: a DC port; an AC port; four power converting units (5, 6, 7, 8) each coupled to the DC port and each comprising an AC terminal (51, 61, 71, 81) adapted to provide a predefined number of voltage levels; first, second and third coupling inductors (1, 2, 3) each comprising first and second windings (11, 21, 31; 12, 22, 32) with the same number of turns, the first, second and third coupling inductors (1, 2, 3) each comprising a first end (111, 211, 311), a second end (112, 212, 312), a third end (121, 221, 321) and a fourth end (122, 222, 322); and an inductive filtering unit (4) arranged between the AC port and the second and fourth ends (312, 322) of the third coupling inductor (3).

2. 发明申请

WO2021092720A1 MULTI-LEVEL POWER CONVERTOR AND METHOD FOR MULTI-LEVEL POWER CONVERTOR 审中-公开
公开(公告)号：WO2021092720A1
公开(公告)日：2021-05-20
申请号：PCT/CN2019/117102
申请日：2019-11-11
申请人： ABB SCHWEIZ AG , YANG, Fu , SHI, Yaming
发明人： YANG, Fu , SHI, Yaming
IPC分类号： H02M7/483
摘要： A multi-level power convertor and a method for a multi-level power convertor. The multi-level power convertor (100) comprises a DC port; an AC port; a first power converting unit (1) coupled to the DC port and comprising a first AC terminal (11) adapted to provide a first plurality of voltage levels; a second power converting unit (2) coupled to the DC port and comprising a second AC terminal (21) adapted to provide a second plurality of voltage levels of the same number as the first plurality of voltage levels, wherein the second plurality of voltage levels are phase-shifted by 90 degree with respect to the first plurality of voltage levels; a coupling inductor (3) comprising first and second windings (31, 32) with the same number of turns, wherein the first winding (31) comprises a first end (311) coupled to the first AC terminal (11) and a second end (312), the second winding (32) comprises a third end (321) coupled to the second AC terminal (21) and a fourth end (322), and the second end (312) of the first winding (31) and the third end (321) of the second winding (32) are namesake ends of the first and second windings (31, 32); and an inductive filtering unit (4) arranged between the AC port and the second and fourth ends (312, 322) of the first and second windings (31, 32).

3. 发明申请

WO2022204965A1 A MULTI-LEVEL POWER CONVERTOR, A MULTI-PHASE POWER CONVERTING CIRCUIT AND A METHOD FOR A MULTI-LEVEL POWER CONVERTOR 审中-公开
公开(公告)号：WO2022204965A1
公开(公告)日：2022-10-06
申请号：PCT/CN2021/084056
申请日：2021-03-30
申请人： ABB SCHWEIZ AG , YANG, Fu , SHI, Yaming
发明人： YANG, Fu , SHI, Yaming
IPC分类号： H02M7/483 , H02M7/487
摘要： Embodiments of present disclosure relate to a multi-level power convertor, a multi-phase power converting circuit and a method for a multi-level power convertor. The multi-level power convertor comprises a DC port; an AC port; a first power converting unit coupled to the DC port and comprising a first AC terminal adapted to provide a first plurality of voltage levels; a second power converting unit coupled to the DC port and comprising a second AC terminal adapted to provide a second plurality of voltage levels of the same number as the first plurality of voltage levels, wherein the second plurality of voltage levels are phase-shifted by 180 degrees with respect to the first plurality of voltage levels; a coupling inductor comprising first and second windings with the same number of turns, wherein the first winding comprises a first end coupled to the first AC terminal and a second end, the second winding comprises a third end coupled to the second AC terminal and a fourth end, and the second end of the first winding and the third end of the second winding are namesake ends of the first and second windings; and an inductive filtering unit arranged between the AC port and the second and fourth ends of the first and second windings.

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