Title:
モータ駆動装置、送風機、圧縮機及び空気調和機
Document Type and Number:
Japanese Patent JP7101898
Kind Code:
B2
Abstract:
A motor drive apparatus includes a reactor, a converter connected to an alternating current power supply via the reactor, a smoothing capacitor connected between output terminals of the converter, and an inverter that converts a direct current voltage output from the smoothing capacitor into an alternating current voltage to be applied to a motor and outputs the alternating current voltage. The motor drive apparatus includes a plurality of operation modes for controlling conduction of switching elements of the converter and causing the converter to operate in different modes of operation, and changes operation of at least one of the switching elements of the converter and the inverter according to the operation mode when a bus voltage indicates an excessive value.
Inventors:
Hatakeyama Kazunori
Keisuke Uemura
Keisuke Uemura
Application Number:
JP2021541949A
Publication Date:
July 15, 2022
Filing Date:
August 30, 2019
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02M7/12; H02M7/21
Domestic Patent References:
| JP201755581A | ||||
| JP10174477A | ||||
| JP201093903A |
Attorney, Agent or Firm:
Takamura Jun