Online identification of parameters defining the saturation characteristics of induction machines

Mikaela Ranta, Marko Hinkkanen

Research output: Contribution to journalArticleScientificpeer-review

24 Citations (Scopus)
56 Downloads (Pure)

Abstract

The induction machine model parameters need to be estimated with good accuracy to ensure a good performance of the drive. Due to the magnetic saturation, the inductances vary as a function of the flux level. The magnetizing curve can be identified at standstill, but more accurate results are obtained if the identification is performed as the machine is running. In this paper, the magnetic saturation is modeled using a power function, and adaptation laws for the function parameters are proposed. The adaptation method is implemented in the control system of a sensorless drive. Experimental results on a 2.2-kW machine show that the identification of the stator inductance is rapid and the accuracy is good.
Original languageEnglish
Pages (from-to)2136-2145
JournalIEEE Transactions on Industry Applications
Volume49
Issue number5
DOIs
Publication statusPublished - 16 Sep 2013
MoE publication typeA1 Journal article-refereed

Keywords

  • induction motor
  • magnetic saturation
  • parameter estimation
  • sensorless control

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