Inclusion of magnetic saturation in dynamic models of synchronous reluctance motors

Zengcai Qu, Toni Tuovinen, Marko Hinkkanen

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

36 Citations (Scopus)
65 Downloads (Pure)


This paper deals with the modeling of the magnetic saturation in synchronous reluctance motors (SyRMs). The saturation is modeled by means of analytical expressions, which can be easily embedded in dynamic equivalent-circuit models. A modified power function - proposed in this paper - can take into account the cross saturation between the orthogonal windings, it is physically consistent, and the number of its parameters is small. The function can be used in real-time control applications and in computer simulations. The model fits well to the experimentally measured inductances of a 6.7-kW SyRM. As an application example, the proposed saturation model was implemented in a full-order observer of a motion-sensorless drive, and experimental results are shown.
Original languageEnglish
Title of host publicationThe 2012 XXth International Conference on Electrical Machines (ICEM 2012)
Place of PublicationMarseille, France
ISBN (Electronic)978-1-4673-0141-1
Publication statusPublished - 2 Sep 2012
MoE publication typeA4 Article in a conference publication


  • cross saturation
  • efficiency optimization
  • inductances
  • reciprocity conditions
  • synchronous reluctance motor


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