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Patent Searching and Data


Title:
MOTOR CONTROL SYSTEM AND POWER STEERING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/163587
Kind Code:
A1
Abstract:
This motor control system is for driving a motor having a phase number n of 3 or higher. The system comprises an inverter and a control calculation unit for performing feedback control of the inverter. The control calculation unit comprises: a voltage control calculation unit for calculating, on the basis of current deviation between a current command value and an actual detected current value, a voltage command value indicating the voltage to be applied by the inverter to the motor; a torque ripple compensation calculation unit for adding a compensation value for compensating for torque ripples in the motor to an upstream and/or a downstream signal value in a stream of a signal passing through the voltage control calculation unit; and a current limit calculation unit for limiting the current command value via adaptive control using an actual angular velocity value indicating the angular velocity at which the motor is rotating.

Inventors:
ENDO,Shuji (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
TATEWAKI,Tokuji (2-8 Shin-Kawasaki, Saiwai-ku, Kawasaki-sh, Kanagawa 32, 〒2120032, JP)
UEDA,Tomoya (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
WATAHIKI,Masanori (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
MORI,Tomonari (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
Application Number:
JP2019/004936
Publication Date:
August 29, 2019
Filing Date:
February 13, 2019
Export Citation:
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Assignee:
NIDEC CORPORATION (338 Kuzetonoshiro-cho, Minami-ku Kyoto-sh, Kyoto 05, 〒6018205, JP)
NIDEC ELESYS CORPORATION (2-8 Shin-Kawasaki, Saiwai-ku Kawasaki-sh, Kanagawa 32, 〒2120032, JP)
International Classes:
H02P23/04; B62D6/00; H02P27/06
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