Title:
CONTROLLER, MOTOR CONTROL SYSTEM HAVING SAID CONTROLLER, AND ELECTRIC POWER STEERING SYSTEM HAVING SAID MOTOR CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/111729
Kind Code:
A1
Abstract:
The present invention provides a feature for reducing operating sound even when a high pass filter is used for control of a motor. A controller 100 is used in a motor control system 1000 that drives a motor M using a drive circuit 200 and an inverter 300. The controller 100 has a current control block 120a. The controller 100 performs feed forward control using a current value, compensates for the term of self-inductance of a motor included in the current control block using an inverse model, compensates for phase characteristics of a transfer function of the inverse model with an advance angle component, and corrects the gain characteristics of the transfer function of the inverse model using a function of the physical quantity obtained on the basis of the angular velocity of the motor, thereby compensating for phase lag of torque output and decrease in gain as caused by self inductance.
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Inventors:
ENDO SHUJI (JP)
NAKANE HAJIME (JP)
YOKOZUKA TAKUYA (JP)
MORISHIMA MIKIO (JP)
TATEWAKI TOKUJI (JP)
NAKANE HAJIME (JP)
YOKOZUKA TAKUYA (JP)
MORISHIMA MIKIO (JP)
TATEWAKI TOKUJI (JP)
Application Number:
PCT/JP2018/043211
Publication Date:
June 13, 2019
Filing Date:
November 22, 2018
Export Citation:
Assignee:
NIDEC CORP (JP)
NIDEC ELESYS CORP (JP)
NIDEC ELESYS CORP (JP)
International Classes:
H02P27/06; G05B11/36
Foreign References:
| JP2010252492A | 2010-11-04 | |||
| JP2013118817A | 2013-06-13 | |||
| JP2017034760A | 2017-02-09 |
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