Online identification of parameters defining the saturation characteristics of induction machines

Mikaela Ranta, Marko Hinkkanen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

5 Citations (Scopus)

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 modelled 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
Title of host publicationThe 2012 XXth International Conference on Electrical Machines (ICEM 2012)
Place of PublicationMarseille, France
Pages1025-1031
ISBN (Electronic)978-1-4673-0141-1
DOIs
Publication statusPublished - 2 Sep 2012
MoE publication typeA4 Article in a conference publication

Keywords

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

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