Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Study on the Detent Torque Reduction of Claw Pole Permanent Magnet Type Motor

  • Jung, Dae-Sung (Electric Power Engineering Team, R&D Center, HYUNDAI MOBIS) ;
  • Lee, Ju (Hanyang University) ;
  • Lee, Sang-Taek (Digital Conversion Center, Korea Electronics Technology Institute (KETI))
  • Received : 2013.10.31
  • Accepted : 2013.12.09
  • Published : 2013.12.31
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Abstract

This paper has done a three-dimensional FEM analysis of the PM claw pole stepping motor. As magnetization happens in the z-axis, which does not have a constant value, three-dimensional FEM analysis is necessary for characteristic analysis of PM claw pole stepping motors. Because it is a type of permanent magnet motor, the PM claw pole stepping motor naturally has a detent torque. This torque is known to show negative effects on motor performance. To improve motor performance, reducing the detent torque is very important during the motor design. This paper applied DOE for optimization of stator pole design of the motor. Also, we compared motor performance by applying a different type of rotor shape, dividing the permanent magnet. To verify the simulation results, an experiment was done.

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References

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