Trigonometry-based numerical method to compute nonlinear magnetic characteristics in switched reluctance motors

X. D. Xue, Ka Wai Eric Cheng, Siu Lau Ho, K. F. Kwok

Research output: Journal article publicationJournal articleAcademic researchpeer-review

33 Citations (Scopus)


Based on two-dimensional (2-D) trigonometry, a new numerical method is presented to compute the nonlinear magnetic and electromagnetic torque characteristics in switched reluctance motors (SRMs). In the proposed method, the mathematical model is composed of the 2-D truncated Fourier series. The coefficients can be determined from a small amount of given magnetic or torque data acquired by experiment or finite-element (FE) analysis. The computed and experimental results demonstrate that the proposed method can be used to precisely compute the nonlinear magnetic and torque characteristics in SRMs. Hence, this paper provides a valuable approach for performance prediction, design, simulation, and control of SRMs.
Original languageEnglish
Pages (from-to)1845-1848
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number4
Publication statusPublished - 1 Apr 2007


  • Model
  • Nonlinear magnetics
  • Switched reluctance motors
  • Torque

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

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