Title:
MOTOR CONTROL DEVICE, AND MOTOR CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2022/255007
Kind Code:
A1
Abstract:
Provided is a motor control device which suppresses momentary voltage saturation, and which has excellent control response characteristics and stability capable of bringing a torque response (current controller response) as close as possible to a predetermined prescribed value. This motor control device is provided with a current command generator which outputs a first current command on the basis of an input torque command or thrust command, a current controller which outputs a second current command in accordance with a predetermined response frequency on the basis of the first current command, a motor inverse model which outputs an applied voltage command on the basis of the second current command, and a response frequency varying means which calculates a changed response frequency on the basis of the second current command or the applied voltage command and outputs the same to the current controller, characterized in that the response frequency varying means controls the applied voltage command while varying the response frequency from the changed response frequency to the predetermined response frequency so as not to cause a saturation voltage.
Inventors:
NOTOHARA YASUO (JP)
YAMAMOTO KOUKI (JP)
YAMAMOTO KOUKI (JP)
Application Number:
PCT/JP2022/018835
Publication Date:
December 08, 2022
Filing Date:
April 26, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02P21/22
Foreign References:
| JP2010239730A | 2010-10-21 | |||
| JPH03251095A | 1991-11-08 | |||
| JP2003348896A | 2003-12-05 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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