Title:
MOTOR CONTROL DEVICE, ELECTROMECHANICAL INTEGRATED UNIT, BOOST CONVERTER SYSTEM, ELECTRIC VEHICLE SYSTEM, AND MOTOR CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2022/130731
Kind Code:
A1
Abstract:
This motor control device, which is connected to a power converter that converts power from DC power to AC power and which controls the driving of an AC motor that is driven using the AC power, comprises a voltage command generation unit that generates a three-phase voltage command, and a gate signal generation unit that performs pulse width modulation of the three-phase voltage command and generates a gate signal for controlling the operation of the power converter. The voltage command generation unit adjusts the three-phase voltage command using a zero-phase voltage based on the power factor of the AC power in an overmodulation region in which the modulation rate that corresponds to the voltage amplitude ratio of the DC power and the AC power exceeds a prescribed threshold value. The gate signal generation unit performs pulse width modulation of the three-phase voltage command after the adjustment by the voltage command generation unit and generates the gate signal.
Inventors:
HARA TAKAFUMI (JP)
AJIMA TOSHIYUKI (JP)
ITAKURA KYOSHIRO (JP)
TOKUYAMA TAKESHI (JP)
ARAKI TAKAHIRO (JP)
AOYAGI SHIGEHISA (JP)
AJIMA TOSHIYUKI (JP)
ITAKURA KYOSHIRO (JP)
TOKUYAMA TAKESHI (JP)
ARAKI TAKAHIRO (JP)
AOYAGI SHIGEHISA (JP)
Application Number:
PCT/JP2021/036022
Publication Date:
June 23, 2022
Filing Date:
September 29, 2021
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02P21/22; H02M7/48; H02P27/08
Foreign References:
| JP2019187135A | 2019-10-24 | |||
| JP2005045846A | 2005-02-17 | |||
| JP2017103864A | 2017-06-08 | |||
| JP2008312398A | 2008-12-25 | |||
| JP2020089170A | 2020-06-04 |
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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