Title:
電動機の駆動装置および冷凍サイクル適用機器
Document Type and Number:
Japanese Patent JP6636207
Kind Code:
B2
Abstract:
An electric-motor driving device (100) includes an inverter (50) connected to terminals connected to windings of an electric motor (70) including the windings, the inverter (50) applying an alternating-current voltage to the electric motor (70), a switching unit (60) connected to the terminals and capable of switching a connection state between the terminals, a detecting unit (80) that detects at least one of a voltage and an electric current of the inverter (50), and a control unit (90) that determines on the basis of a detection value detected by the detecting unit (80) that an abnormality occurs in the switching unit (60) and controls the inverter (50) to short-circuit at least two of the terminals.
Inventors:
Hatakeyama Kazunori
Application Number:
JP2019504231A
Publication Date:
January 29, 2020
Filing Date:
March 09, 2017
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02P29/024; H02P25/18; H02P27/06
Domestic Patent References:
| JP2008228513A | ||||
| JP201699029A | ||||
| JP4355697A |
Foreign References:
| WO2016015147A1 | ||||
| KR100936019B1 |
Attorney, Agent or Firm:
Jun Takamura