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Title:
CONTROL METHOD AND CONTROL DEVICE FOR ROTARY ELECTRIC MOTOR, AND ROTARY ELECTRIC MOTOR DRIVE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/042895
Kind Code:
A1
Abstract:
Provided are a control device and a control method for a rotary electric motor, which can reliably inhibit vibration of the rotary electric motor, as well as a rotary electric motor drive system. PWM control is performed on the rotary electric motor at a prescribed carrier frequency (fc), and when an oscillation frequency (f0) of a natural mode of space 0-order of the rotary electric motor and a frequency of the frequency components (fc-3f1) of the electromagnetic excitation force that generates the natural mode overlap, the value of the carrier frequency switches from a first value (fc_1) to a second value (fc_2) different from the first value.

Inventors:
YOSHIDA Takeshi (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
HARA Takafumi (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
HOSHINO Katsuhiro (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
OYAMA Kazuto (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
Application Number:
JP2017/025353
Publication Date:
March 08, 2018
Filing Date:
July 12, 2017
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
International Classes:
H02P23/04; H02M7/48; H02P27/08; B60L9/18
Attorney, Agent or Firm:
TODA Yuji (6-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 20, 〒1008220, JP)
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