Title:
MOTOR DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/053008
Kind Code:
A1
Abstract:
A motor drive device (100) comprises: an inverter (32) that converts DC voltage to AC voltage and applies the AC voltage to an AC motor (1); a DC voltage detection unit (31) that detects the DC voltage applied to the inverter (32); a voltage command generation unit (21) that generates a voltage command on the basis of a torque command and the detected value of the DC voltage; and a gate signal generation unit (22) that generates a gate signal for pulse width modulation control of the inverter (32) on the basis of the result of the comparison between a modulation wave that is the waveform of the voltage command and a carrier wave. The number of slots per magnetic pole in the stator core (9) of the AC motor (1) is a natural number multiple of 3. When a numerical value obtained by normalizing the frequency of the carrier wave by the frequency of the modulation wave is denoted by Fc as a carrier wave order and n is a natural number, there is a relationship of Fc = 6n + 3 between Fc and n.
Inventors:
KANEKO KENTA (JP)
HAZEYAMA MORIYUKI (JP)
HAMADA YU (JP)
TERAMOTO KOTA (JP)
HAZEYAMA MORIYUKI (JP)
HAMADA YU (JP)
TERAMOTO KOTA (JP)
Application Number:
PCT/JP2022/033539
Publication Date:
March 14, 2024
Filing Date:
September 07, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P27/08
Domestic Patent References:
| WO2018139295A1 | 2018-08-02 | |||
| WO2015093175A1 | 2015-06-25 |
Foreign References:
| JP2006158141A | 2006-06-15 | |||
| JP2016163515A | 2016-09-05 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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