On-line parameter estimator of an induction motor at standstill

Chich Hsing Fang*, Shir-Kuan Lin, Shyh Jier Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


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.

Original languageEnglish
Pages (from-to)535-540
Number of pages6
JournalControl Engineering Practice
Issue number5
StatePublished - 1 May 2005


  • Current controller
  • Gradient estimator
  • Induction motor
  • Parameter identification
  • Persistent excitation

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