Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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Analysis and Design of a Novel-Shape Permanent Magnet Synchronous Motor for Minimization of Torque Ripple and Iron Loss

  • Kim, Jin-Hong (Korea Electronics Technology Institute) ;
  • Seo, Jung-Moo (Korea Electronics Technology Institute) ;
  • Jung, Hyun-Kyo (Dept. of Electrical and Computer Engineering, Seoul National University) ;
  • Won, Chung-Yuen (Dept. of Electrical and Computer Engineering, Sungkyunkwan University)
  • Received : 2014.10.28
  • Accepted : 2014.12.16
  • Published : 2014.12.31
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Abstract

This paper presents the shape optimization of a permanent magnet synchronous motor to reduce the torque ripple and iron loss. Specifically, the harmonics of the electromotive force and cogging torque are decreased by adjusting the permanent magnet arrangement and non-uniform air gap length. In addition, an additional flux path along the q-axis is proposed with a unique rotor shape to increase the q-axis inductance and reluctance torque. The improvement in the performance of the proposed model is verified with simulated and experimental results.

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References

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