On-line parameter estimator of an induction motor at standstill

This paper describes an automatic identification procedure for an induction motor. The transfer function of the motor at standstill is used to obtain a linear parametric model. An on-line parameter estimator is then derived from this model. In the implementation of the proposed estimator, a PI curre...

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Bibliographic Details
Published inControl engineering practice Vol. 13; no. 5; pp. 535 - 540
Main Authors Fang, Chich-Hsing, Lin, Shir-Kuan, Wang, Shyh-Jier
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.05.2005
Subjects
Current controller
Gradient estimator
Induction motor
Parameter identification
Persistent excitation
Induction motor
Current controller
Parameter identification
Persistent excitation
Gradient estimator
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Summary:This paper describes an automatic identification procedure for an induction motor. The transfer function of the motor at standstill is used to obtain a linear parametric model. An on-line parameter estimator is then derived from this model. In the implementation of the proposed estimator, a PI current controller is constructed to stabilize the current signal and to prevent the flux from saturation. An experiment with an input that is persistently exciting verifies the theory of the proposed estimator and demonstrates its usefulness in industry applications.
ISSN:0967-0661
1873-6939
DOI:10.1016/j.conengprac.2004.04.024