公开(公告)号：US20240235452A1

公开(公告)日：2024-07-11

申请号：US18151010

申请日：2023-01-06

Applicant: General Electric Company

Inventor： Hang Dai ,  Kum Kang Huh ,  Rajib Datta ,  Cong Li ,  Vandana Prabhakar Rallabandi ,  Thomas Jahns ,  Bulent Sarlioglu

IPC: H02P27/08 ,  B60L50/00 ,  B64D27/24 ,  H02M1/44

CPC classification number: H02P27/08 ,  B60L50/00 ,  B64D27/24 ,  H02M1/44 ,  B60L2200/10 ,  B60L2210/40 ,  B64D2221/00

Abstract: A power converter is provided. In one aspect, the power converter has a first inverter and a second inverter electrically coupled with one another and with a power bus. First switches of the first inverter are arranged symmetrically with second switches of the second inverter so that, when switched in a pulse width modulated switching scheme, the first switches generate a first common mode signal and the second switches generate a second common mode signal that is one hundred eighty degrees out of phase with the first common mode signal. In another aspect, the power converter includes a buck stage having one or more pairs of symmetrically arranged buck switches that can be controlled to reduce or eliminate common mode electromagnetic interference in the buck stage. The power converter can also include one or more pairs of symmetrically arranged inductors.

公开(公告)号：US20250100699A1

公开(公告)日：2025-03-27

申请号：US18786817

申请日：2024-07-29

Applicant: General Electric Company

Inventor： Hang Dai ,  Cong Li ,  Kum Kang Huh ,  Ren Xie

IPC: B64D27/359 ,  B64D27/34

Abstract: A power system is provided. The power system includes: an electric machine comprising a first multiphase winding and a second multiphase winding, the first multiphase winding and the second multiphase winding being electrically opposite in phase with respect to one another; and a power converter system having: first switching elements in electric connection with the first multiphase winding and having a DC side and an AC side; second switching elements in electric connection with the second multiphase winding and having a DC side and an AC side; a plurality of capacitors coupled to the first switching elements on the DC side of the first switching elements and to the second switching elements on the DC side of the second switching elements; and a means for reducing common mode currents on the AC side of the first switching elements and on the AC side of the second switching elements.