Title:
DRIVE DEVICE, COMPRESSOR, AIR CONDITIONER, AND METHOD FOR DRIVING EMBEDDED PERMANENT MAGNET-TYPE ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2019/021452
Kind Code:
A1
Abstract:
This drive device (100) is provided with: a connection switching unit (60) which switches the connection state of a coil (3) between a Y connection and a delta connection; an inverter (103); and a control device (50) which controls the carrier frequency of the inverter (103). When the connection state of the coil (3) is the Y connection, the carrier frequency is set to a first carrier frequency. When the connection state of the coil (3) is the delta connection, the carrier frequency is set to a second carrier frequency.
Inventors:
HIROSAWA YUJI (JP)
NIGO MASAHIRO (JP)
NIGO MASAHIRO (JP)
Application Number:
PCT/JP2017/027411
Publication Date:
January 31, 2019
Filing Date:
July 28, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P27/08
Foreign References:
| JP2011030371A | 2011-02-10 | |||
| JP2008228513A | 2008-09-25 | |||
| JP2014150685A | 2014-08-21 | |||
| CN103401459A | 2013-11-20 | |||
| CN102522749A | 2012-06-27 | |||
| CN101715252A | 2010-05-26 | |||
| JP2009216324A | 2009-09-24 |
Other References:
See also references of EP 3661047A4
Attorney, Agent or Firm:
MAEDA Minoru et al. (JP)
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