KIEE International Transaction on Electrical Machinery and Energy Conversion Systems

The Korean Institute of Electrical Engineers (대한전기학회)
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Cogging Torque Minimization in Permanent Magnet Brushless DC Motors for High-Speed Application

  • Jang Seok-Myeong (Department of Electrical Engineering, Chungnam National University) ;
  • Cho Han-Wook (Department of Electrical Engineering, Chungnam National University) ;
  • You Dae-Joon (Department of Electrical Engineering, Chungnam National University)
  • Published : 2005.06.01
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Abstract

In a permanent magnet brushless dc motor, cogging torque is produced by the magnetic attraction between the rotor mounted permanent magnets and the stator teeth. This always produces a pulsating torque ripple resulting in vibration and acoustic noise, which is detrimental to the motor performance. This paper deals with the analytical prediction of cogging torque and the various cogging torque minimization techniques as applied to a permanent magnet brushless dc motor.

Keywords

References

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