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1. (WO2017150641) POWER CONVERSION DEVICE, MOTOR DRIVE UNIT, AND ELECTRIC POWER STEERING DEVICE

Pub. No.:    WO/2017/150641    International Application No.:    PCT/JP2017/008192
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Mar 02 00:59:59 CET 2017
IPC: H02P 27/06
H02M 7/48
Applicants: NIDEC CORPORATION
日本電産株式会社
Inventors: WADA Eiji
和田 英司
Title: POWER CONVERSION DEVICE, MOTOR DRIVE UNIT, AND ELECTRIC POWER STEERING DEVICE
Abstract:
A power conversion device (100) according to an embodiment of the present invention is provided with: a first inverter (120) connected to one end of the winding of each of the phases of an electric motor (200) having n phases (n is an integer of 3 or more) of windings; a second inverter (130) connected to the other end of the winding of each phase; and a switching circuit (110) comprising at least one of a first switch element (111) for switching whether the first inverter and a ground are connected or disconnected and a second switch element (112) for switching whether the second inverter and the ground are connected or disconnected.