Magnetic analysis of switched reluctance actuators in levitated linear transporters

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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

16 Citations (Scopus)


A novel linear magnetic levitated actuator using the switched reluctance principle is addressed in this paper. This actuator can be applied to precise motion control of automation machines. The proposed system has the advantages of a simple and robust structure, and direct drive capability. The contactless structure eliminates mechanical wear, friction, noise, and heat generation. To verify the feasibility of the proposed system, the magnetic levitated force is analyzed by magnetic circuit analysis (MCA) and by finite-element analysis (FEA). A prototype structure is fabricated, and experiments are performed with the actual hardware. Results of the MCA and the FEA are both compared with the results obtained from the hardware experiments. They all agree with the proposed design methodology. This paper can form a useful reference in the design of a mechanical structure for magnetic levitated switched reluctance actuators.
Original languageEnglish
Article number5565512
Pages (from-to)4280-4288
Number of pages9
JournalIEEE Transactions on Vehicular Technology
Issue number9
Publication statusPublished - 1 Nov 2010


  • Electromagnetic force
  • finite-element analysis (FEA)
  • linear switched reluctance actuator
  • magnetic circuit analysis (MCA)
  • magnetic levitation

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Applied Mathematics
  • Electrical and Electronic Engineering


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