Title:
POWER CONVERSION DEVICE, MOTOR MODULE, AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/159665
Kind Code:
A1
Abstract:
A power conversion device (100) is equipped with: a first inverter (120) that is connected to one end of each phase winding of a motor (200); a second inverter (130) that is connected the other end of each phase winding; a power supply interrupting circuit (110) that is provided with a first switch element (111) having a first protection circuit (PC1) connected in parallel thereto, a second switch element (112) having a second protection circuit (PC2) connected in parallel thereto, a third switch element (113) having a third protection circuit (PC3) connected in parallel thereto, and a fourth switch element (114) having a fourth protection circuit (PC4) connected in parallel thereto; a first neutral-point relay circuit (180) that is connected to the one ends of the phase windings and switches between connecting together and disconnecting the one ends of the phase windings; and a second neutral-point relay circuit (190) that is connected to the other ends of the phase windings and switches between connecting together and disconnecting the other ends of the phase windings.
Inventors:
OHASHI HIROMITSU (JP)
Application Number:
PCT/JP2019/002671
Publication Date:
August 22, 2019
Filing Date:
January 28, 2019
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02P27/06; B62D5/04; H02M7/48
Domestic Patent References:
| WO2017150640A1 | 2017-09-08 |
Foreign References:
| JP2013529055A | 2013-07-11 |
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