A novel flux linkage measurement method for linear switched reluctance motors

Shi Wei Zhao, Chow Norbert Cheung, Wai Chuen Gan, Zhen Gang Sun

Research output: Journal article publicationJournal articleAcademic researchpeer-review

28 Citations (Scopus)


The magnetic characteristics of a linear switched reluctance motor (LSRM) are important in its performance prediction and verification. Owing to the complicated magnetic paths, the measurement of the flux linkage for this type motor has drawn many researchers' attentions. In this paper, a new flux linkage measurement method for LSRMs is proposed to obtain the flux linkage characteristics of LSRMs using an online winding resistance estimation technique. Both the theoretical derivation and the actual implementation of the proposed method are addressed in this paper. In comparison with the search coil scheme and the static resistor scheme, experimental results confirm the validity and accuracy of this method. In short, the proposed method is simple, effective, and easy to be implemented. It is a practical solution for flux linkage measurement of LSRMs and other motors.
Original languageEnglish
Pages (from-to)3569-3575
Number of pages7
JournalIEEE Transactions on Instrumentation and Measurement
Issue number10
Publication statusPublished - 9 Sept 2009


  • Error analysis
  • Flux linkage measurement
  • Linear switched reluctance motor (LSRM)
  • Online resistor estimation
  • Switched reluctance motor (SRM)

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering


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