Title:
LOAD DRIVE DEVICE, AIR CONDITIONER, AND METHOD FOR OPERATING LOAD DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/230235
Kind Code:
A1
Abstract:
This load drive device is provided with first and second motors (41, 42) for respectively driving a plurality of loads and an inverter (4) for applying a voltage common to the first and second motors (41, 42). The first motor (41) is vector-controlled by a control unit (10). The second motor (42) is driven by the common voltage. The ratio of the winding resistance value of the second motor (42) to the winding resistance value of the first motor (41) that is a reference motor is 2.4 or more.
Inventors:
SHIMIZU YUICHI (JP)
TANIYAMA YUKI (JP)
WADA YASUHIKO (JP)
TANIYAMA YUKI (JP)
WADA YASUHIKO (JP)
Application Number:
PCT/JP2019/018942
Publication Date:
November 19, 2020
Filing Date:
May 13, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P5/46
Domestic Patent References:
| WO2018198289A1 | 2018-11-01 | |||
| WO2018181541A1 | 2018-10-04 |
Foreign References:
| JPH09191681A | 1997-07-22 | |||
| JP2012196091A | 2012-10-11 | |||
| JP2008125247A | 2008-05-29 | |||
| JP2014066912A | 2014-04-17 | |||
| JP2010022184A | 2010-01-28 | |||
| JP4672236B2 | 2011-04-20 | |||
| JPS4931970B1 | 1974-08-27 | |||
| JPS5937619B2 | 1984-09-11 |
Other References:
See also references of EP 3972115A4
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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