Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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Performance of High-Speed 4/2 Switched Reluctance Motor

  • Lee, Dong-Hee (Department of Mechatronics Engineering, Kyungsung University) ;
  • Ahn, Jin-Woo (Department of Mechatronics Engineering, Kyungsung University)
  • Received : 2010.09.01
  • Accepted : 2011.04.18
  • Published : 2011.09.01
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Abstract

The current study presents the design and performance of a novel 4/2 switched reluctance motor (SRM) for a high-speed air blower. With a comparative study of some rotor structures for a high-speed drive, a stepper-type rotor is optimized to produce a continuous torque and a low torque ripple. Rotor pole arc is modified to have a wide continuous output torque region, and air gap is determined to develop less torque ripple. The rotor radius is determined to reduce torque ripple with a reiterative FEM analysis. The designed rotor has three regions: short uniform, long uniform, and nonuniform air-gap region. The positive torque region is wider than a conventional 4/2 SRM without any torque dead zone. A prototype is tested and the efficiency is up to 72[%] at 30,000[rpm], 600[w] output.

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References

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