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Title:
MOTOR DRIVING DEVICE AND REFRIGERATION CYCLE APPLICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/163363
Kind Code:
A1
Abstract:
A motor driving device (100) comprises: an inverter (50) that is connected to terminals connected to a winding of a motor (70) having a winding, the inverter (50) applying an AC voltage to the motor (70); a switching part (60) that is connected to the terminals and can switch the state of connection between the terminals, a detection unit (80) that detects the voltage and/or current of the inverter (50), and a control unit (90) that determines whether a fault has occurred in the switching part (60) on the basis of the detection value detected by the detection unit (80) and controls the inverter (50) so that a short-circuiting occurs between the terminals.

Inventors:
HATAKEYAMA, Kazunori (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2017/009532
Publication Date:
September 13, 2018
Filing Date:
March 09, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H02P29/024; H02P3/22; H02P25/18
Domestic Patent References:
WO2016015147A12016-02-04
Foreign References:
JP2008228513A2008-09-25
JP2016099029A2016-05-30
JPH04355697A1992-12-09
KR100936019B12010-01-11
JP2012227981A2012-11-15
Other References:
See also references of EP 3399645A4
Attorney, Agent or Firm:
TAKAMURA, Jun (Sakai International Patent Office, Toranomon Mitsui Building 8-1, Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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