Evaluation of third harmonic component effects in five-phase synchronous reluctance motor drive using time-stepping finite-element method

Longya Xu, Weinong Fu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

12 Citations (Scopus)


Interaction of the third harmonic magnetic field with the third harmonic current in a five-phase synchronous reluctance motor (SynRM) can produce additional torque. However, it is still not clear about the SynRM power factor and its impact on the associated power converter because of the third harmonic components. Using time-stepping finite-element method, a mathematical model of the SynRM, which allows any desired harmonic component in computation, is presented. Performance of the five-phase SynRM with two rotor structures has been computed. The study finds that contribution of the third harmonic current to the output torque depends on the rotor structures. It is also shown that the required terminal voltage to regulate the desired current waveform is substantially increased, a result not reported before.
Original languageEnglish
Pages (from-to)638-644
Number of pages7
JournalIEEE Transactions on Industry Applications
Issue number3
Publication statusPublished - 1 May 2002
Externally publishedYes


  • Finite-element methods
  • Synchronous reluctance motor
  • Third harmonic
  • Time stepping

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Engineering (miscellaneous)

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