Title:
POWER CONVERSION APPARATUS, MOTOR DRIVE DEVICE, AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2021/038884
Kind Code:
A1
Abstract:
The present invention comprises: a line reactor (2) having a first end and a second end, the first end being connected to an AC power source (1); a rectifying circuit (3) that is connected to the second end of the line reactor (2), that is provided with a diode and at least one switching element, and that converts AC voltage output from the AC power source (1) into DC voltage; and a detecting unit that detects a physical quantity indicating the operating state of the rectifying circuit (3). Power-factor betterment control is carried out by switching, in the rectifying circuit (3), whether current from the AC power source (1) is passed to the diode or to the switching element, according to the physical quantity or to a value obtained from the physical quantity.
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Inventors:
UEMURA KEISUKE (JP)
HATAKEYAMA KAZUNORI (JP)
ARISAWA KOICHI (JP)
HATAKEYAMA KAZUNORI (JP)
ARISAWA KOICHI (JP)
Application Number:
PCT/JP2019/034302
Publication Date:
March 04, 2021
Filing Date:
August 30, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02M7/12; F24F11/88
Foreign References:
| JP2018068028A | 2018-04-26 | |||
| JP2012120379A | 2012-06-21 | |||
| JP2014090570A | 2014-05-15 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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