Title:
MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/217548
Kind Code:
A1
Abstract:
Provided is a motor control device that can suppress a torque ripple even when electric characteristics of a motor have errors or variations. The present invention comprises: a basic current command generation unit (1) that outputs a d-axis basic current command and a q-axis basic current command for outputting a basic torque to a motor (7) having saliency; a position-dependent component generation unit (101) that outputs a position-dependent component of the motor according to a rotational position of the motor; a current correction command calculation unit (103) that calculates a d-axis current correction command and a q-axis current correction command from the d-axis basic current command, the q-axis basic current command, and the position-dependent component; a current correction command superposition unit (2) that superimposes the d-axis current correction command and the q-axis current correction command on the d-axis basic current command and the q-axis basic current command to generate a d-axis current command and a q-axis current command; and a current control unit (3) that controls a current flowing in the motor 7 via an inverter 6 on the basis of the d-axis current command and the q-axis current command.
Inventors:
ORII MASAHIKO (JP)
KEZOBO ISAO (JP)
MORI TATSUYA (JP)
FUJII GENKI (JP)
KEZOBO ISAO (JP)
MORI TATSUYA (JP)
FUJII GENKI (JP)
Application Number:
PCT/JP2019/025626
Publication Date:
October 29, 2020
Filing Date:
June 27, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P21/05
Foreign References:
| JP2011019336A | 2011-01-27 | |||
| JP2015035885A | 2015-02-19 | |||
| JP2017070066A | 2017-04-06 | |||
| JP2017051031A | 2017-03-09 | |||
| JP2007267466A | 2007-10-11 |
Other References:
See also references of EP 3961911A4
Attorney, Agent or Firm:
OIWA Masuo et al. (JP)
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