Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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Torque Calculation Method of a Permanent Magnet Spherical Motor

  • Lee, Hyung-Woo (Department of Vehicle Dynamics & Propulsion System Research, Korea Railroad Research Institute) ;
  • Kang, Dong-Woo (Department of Electric Engineering, Hanyang University) ;
  • Lee, Ju (Department of Electric Engineering, Hanyang University)
  • Received : 2009.07.13
  • Accepted : 2010.05.11
  • Published : 2010.09.01
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Abstract

This paper presents the torque calculation method of a permanent magnet spherical motor. To calculate using the finite element method (FEM), three-dimensional (3D) FEM must be used. However, since the method requires excessive time and memory, an easier torque calculation method is hereby presented. In the proposed method, it is very important to obtain the approximation function of the torque profile curve. We present the approximation method of the torque profile curve and show that the torque calculation result can approximate the torque obtained by 3-D FEM.

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References

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