Title:
CONTROL APPARATUS FOR AC MOTOR
Document Type and Number:
WIPO Patent Application WO/2018/220968
Kind Code:
A1
Abstract:
A control apparatus for an AC motor (10) comprises: a correction unit (220) that calculates a correction voltage for compensating for an output voltage error of a power converter (3) and corrects a voltage command; a voltage error feature amount extraction unit (100) for extracting a feature amount of the output voltage error on the basis of a detected phase current; and a correction voltage adjustment unit (300) for adjusting the parameters of the correction voltage on the basis of the extracted feature amount of the output voltage error. Also, the correction voltage adjustment unit (300) adjusts a parasitic capacitance C within the power converter (3) correlating to the slope of the correction voltage as a parameter, and the correction unit (220) calculates the correction voltage using the adjusted parasitic capacitance C.
Inventors:
HOZUKI TAKASHI (JP)
FURUTANI SHINICHI (JP)
FURUTANI SHINICHI (JP)
Application Number:
PCT/JP2018/012279
Publication Date:
December 06, 2018
Filing Date:
March 27, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P27/06; H02M7/48; H02P21/22
Foreign References:
| JP2009254032A | 2009-10-29 | |||
| JP2015096019A | 2015-05-18 | |||
| JP2011217575A | 2011-10-27 | |||
| US20120287687A1 | 2012-11-15 | |||
| US20130181654A1 | 2013-07-18 |
Attorney, Agent or Firm:
MURAKAMI Keigo et al. (JP)
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