公开(公告)号：US20220399830A1

公开(公告)日：2022-12-15

申请号：US17776122

申请日：2019-11-11

Applicant: ABB E-MOBILITY B.V.

Inventor： Fu Yang ,  Yaming Shi

IPC: H02M7/483 ,  H02M7/493 ,  H02M7/797 ,  H02M1/00

Abstract: Described herein is a multi-level power convertor and a method for a multi-level power convertor. The multi-level power convertor includes a DC port; an AC port; a first power converting unit, a second power converting unit, a coupling inductor, and an inductive filtering unit. The first power converting unit is coupled to the DC port and includes a first AC terminal adapted to provide a first plurality of voltage levels. The second power converting unit is coupled to the DC port and includes a second AC terminal adapted to provide a second plurality of voltage levels, where the second plurality of voltage levels are phase-shifted by 90 degrees with respect to the first plurality of voltage levels. The coupling inductor includes first and second windings with a same number of turns. The inductive filtering unit is arranged between the AC port and ends of the first and second windings.

公开(公告)号：US20240372483A1

公开(公告)日：2024-11-07

申请号：US18552864

申请日：2021-03-30

Applicant: ABB E-mobility B.V.

Inventor： Fu Yang ,  Yaming Shi

IPC: H02M7/487 ,  H02M1/00 ,  H02M7/493

Abstract: A multi-level power convertor is provided. The multi-level power convertor includes a DC port, an AC port, a first power converting unit coupled to the DC port and including a first AC terminal adapted to provide a first plurality of voltage levels, a second power converting unit coupled to the DC port and including a second AC terminal adapted to provide a second plurality of voltage levels of the same number as the first plurality of voltage levels, a coupling inductor including first and second windings with the same number of turns, and an inductive filtering unit arranged between the AC port and the second and fourth ends of the first and second windings.

公开(公告)号：US12143031B2

公开(公告)日：2024-11-12

申请号：US17776122

申请日：2019-11-11

Applicant: ABB E-MOBILITY B.V.

Inventor： Fu Yang ,  Yaming Shi

IPC: H02M1/00 ,  H02M7/483 ,  H02M7/49 ,  H02M7/493 ,  H02M7/797

Abstract: Described herein is a multi-level power convertor and a method for a multi-level power convertor. The multi-level power convertor includes a DC port; an AC port; a first power converting unit, a second power converting unit, a coupling inductor, and an inductive filtering unit. The first power converting unit is coupled to the DC port and includes a first AC terminal adapted to provide a first plurality of voltage levels. The second power converting unit is coupled to the DC port and includes a second AC terminal adapted to provide a second plurality of voltage levels, where the second plurality of voltage levels are phase-shifted by 90 degrees with respect to the first plurality of voltage levels. The coupling inductor includes first and second windings with a same number of turns. The inductive filtering unit is arranged between the AC port and ends of the first and second windings.