Title:
MOTOR CONTROL SYSTEM, AND POWER STEERING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/163552
Kind Code:
A1
Abstract:
This motor control system comprises an inverter and a control calculation unit that performs feedback control of the inverter. The control calculation unit comprises: a voltage control calculation unit that, on the basis of the current deviation between the current command value and the actual current detection value, calculates a voltage command value indicating the voltage applied to the motor from the inverter; and a torque ripple compensation calculation unit that adds a compensation value compensating for torque ripple in the motor to a signal value in the upstream side and/or downstream side in the flow of the signals that pass through the voltage control calculation unit. The torque ripple compensation calculation unit calculates the compensation value on the basis of the actual angular velocity value indicating the angular velocity at which the motor rotates and the target current command value in consideration of advance-angle control that compensates for a response delay of the motor control system with respect to the compensation value.
Inventors:
ENDO SHUJI (JP)
TATEWAKI TOKUJI (JP)
UEDA TOMOYA (JP)
WATAHIKI MASANORI (JP)
MORI TOMONARI (JP)
TATEWAKI TOKUJI (JP)
UEDA TOMOYA (JP)
WATAHIKI MASANORI (JP)
MORI TOMONARI (JP)
Application Number:
PCT/JP2019/004541
Publication Date:
August 29, 2019
Filing Date:
February 08, 2019
Export Citation:
Assignee:
NIDEC CORP (JP)
NIDEC ELESYS CORP (JP)
NIDEC ELESYS CORP (JP)
International Classes:
H02P23/04; B62D6/00; H02P21/05; H02P27/06
Foreign References:
| JP2004328814A | 2004-11-18 | |||
| JP2004064909A | 2004-02-26 | |||
| JP2017017899A | 2017-01-19 | |||
| JP2014150604A | 2014-08-21 | |||
| JP2013085439A | 2013-05-09 |
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