Title:
MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/208652
Kind Code:
A1
Abstract:
Provided is a motor control device in which high-frequency noise accompanying the detection of a direct-current bus current can be reduced without changing the switching frequency. This motor control device 3 comprises: a power converter 14; a three-phase motor 2 driven by the power converter; and a control means 13 that detects a three-phase current flowing through the three-phase motor on the basis of a direct-current bus current, creates a phase voltage command value by using the detected three-phase current, and controls the power converter by using the phase voltage command value. At the time of detecting the direct-current bus current, the control means corrects the phase voltage command value on the basis of a d-axis voltage, and shifts the phase of a phase voltage pulse.
Inventors:
HARA TAKAFUMI (JP)
AJIMA TOSHIYUKI (JP)
YANAGISAWA HIROAKI (JP)
AJIMA TOSHIYUKI (JP)
YANAGISAWA HIROAKI (JP)
Application Number:
PCT/JP2017/015607
Publication Date:
December 07, 2017
Filing Date:
April 18, 2017
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02P21/22; B60T13/74; B62D5/04; B62D6/00; H02M7/48; B62D119/00
Domestic Patent References:
| WO2015025622A1 | 2015-02-26 |
Foreign References:
| JP2012178927A | 2012-09-13 | |||
| JP2010068653A | 2010-03-25 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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