Title:
モータ駆動装置及び冷凍サイクル装置
Document Type and Number:
Japanese Patent JP7255015
Kind Code:
B2
Abstract:
A motor drive device, according to the present invention, selectively sets an open winding mode in which other ends of each phase winding in a motor are disconnected by opening a switch and a first and second inverter are linked together and switched between, and a star connection mode in which the other ends of each phase winding are connected to each other by closing the switch to each other and which switches to the first inverter. If the motor stops abnormally when the open winding mode is set, the motor drive device sets the star connection mode instead of the open winding mode and restarts the motor.
Inventors:
Kenichi Yamamoto
Application Number:
JP2022505674A
Publication Date:
April 10, 2023
Filing Date:
March 12, 2020
Export Citation:
Assignee:
Toshiba Carrier Co., Ltd.
International Classes:
H02P25/18
Domestic Patent References:
| JP2019176554A | ||||
| JP2019062726A |
Attorney, Agent or Firm:
Suzue International Patent Office