Title:
MOTOR DRIVE DEVICE AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2020/066029
Kind Code:
A1
Abstract:
A motor drive device (100) is equipped with: a booster circuit (3) that has at least one first switching element, and that converts AC voltage output from an AC power supply (1) to DC voltage while boosting the voltage; a capacitor (4) that smooths the DC voltage output from the booster circuit (3); and an inverter circuit (18) that has a plurality of second switching elements, and that converts power accumulated in the capacitor (4) to AC power and supplies the AC power to a motor (500). In the period from the initiation of self-regulated operation of the motor (500) to the point when the rotational speed of the motor (500) reaches a constant speed, the motor drive device (100) reduces the number of switching operations of the second switching elements to a prescribed number of switching operations.
More Like This:
| WO/2004/001952 | ELEVATOR CONTROL DEVICE |
| JP4508237 | Rotating machine control device |
| WO/1993/005557 | MOTOR CONTROLLER |
Inventors:
SHIMOMUGI TAKUYA (JP)
ARISAWA KOICHI (JP)
ICHIKI SATORU (JP)
UEMURA KEISUKE (JP)
IWAZAKI KENJI (JP)
ARISAWA KOICHI (JP)
ICHIKI SATORU (JP)
UEMURA KEISUKE (JP)
IWAZAKI KENJI (JP)
Application Number:
PCT/JP2018/036606
Publication Date:
April 02, 2020
Filing Date:
September 28, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P27/08; H02P25/18
Foreign References:
| JP2008219956A | 2008-09-18 | |||
| JP2010187521A | 2010-08-26 | |||
| JP2014117118A | 2014-06-26 | |||
| JP2014150685A | 2014-08-21 | |||
| JP2014118773A | 2014-06-30 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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