Title:
CONTROL DEVICE FOR THREE-PHASE ALTERNATING CURRENT ROTATING MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/199410
Kind Code:
A1
Abstract:
Provided is a control device for a three-phase alternating current rotating machine enabling accurate estimation of a CT gain imbalance. This control device for a three-phase alternating current rotating machine defines, as a reference, a preset detection signal out of current of at least two phases that has been detected, detects an inter-phase gain error of a reference phase and a non-reference phase from a d-axis current and an electrical angle, and causes the gain of a current detector of the non-reference phase to be reflective of a computation result of the inter-phase gain error. The foregoing makes it possible to accurately estimate the CT gain imbalance.
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Inventors:
HIRABAYASHI KAZUFUMI (JP)
YOKOYAMA EIJI (JP)
MINOBE MORISHIGE (JP)
OTSUKA YASUSHI (JP)
ISHIGURO HIDETAKA (JP)
ENOKIJIMA HIROYUKI (JP)
YOKOYAMA EIJI (JP)
MINOBE MORISHIGE (JP)
OTSUKA YASUSHI (JP)
ISHIGURO HIDETAKA (JP)
ENOKIJIMA HIROYUKI (JP)
Application Number:
PCT/JP2020/015227
Publication Date:
October 07, 2021
Filing Date:
April 02, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P21/22
Foreign References:
| JP2016019341A | 2016-02-01 | |||
| JP2004120814A | 2004-04-15 | |||
| JP2016158414A | 2016-09-01 |
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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