Title:
MOTOR DRIVE DEVICE AND REFRIGERATION CYCLE INSTRUMENT
Document Type and Number:
WIPO Patent Application WO/2024/069811
Kind Code:
A1
Abstract:
A motor drive device (100) drives a motor (40) that generates, in addition to a fundamental wave component of an induced voltage, at least one harmonic voltage of a fifth-order harmonic component and a seventh-order harmonic component of the induced voltage. The motor drive device (100) comprises: an inverter (30) that converts a DC voltage applied from a capacitor (22) to an AC voltage and applies the resulting voltage to the motor (40); and a control unit (60) that controls an inverter output voltage outputted by the inverter (30). The control unit (60) controls the inverter output voltage so as to suppress a torque variation component generated from the product of the fundamental wave component of a motor current which is a current flowing through the motor (40), and at least one harmonic induced voltage of a fifth-order harmonic component and a seventh-order harmonic component.
Inventors:
HATAKEYAMA KAZUNORI (JP)
TOYODOME SHINYA (JP)
SASAKI RYOICHI (JP)
TOYODOME SHINYA (JP)
SASAKI RYOICHI (JP)
Application Number:
PCT/JP2022/036253
Publication Date:
April 04, 2024
Filing Date:
September 28, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P21/22; H02P27/08
Domestic Patent References:
| WO2020095377A1 | 2020-05-14 |
Foreign References:
| JP2020178429A | 2020-10-29 | |||
| JP2013198221A | 2013-09-30 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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