KIEE International Transaction on Electrical Machinery and Energy Conversion Systems

The Korean Institute of Electrical Engineers (대한전기학회)
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Permanent Magnet Overhang Effect in Permanent Magnetic Actuator Using 3 Dimension Equivalent Magnetic Circuit network Method

  • Lim Seung-Bin (Dept. of Electrical Engineering Hanyang University) ;
  • Kwon Ho (Motor Dept. of Components Division of LG Innoteck co., Ltd.) ;
  • Kwon Sam-Young (Dept. of Electrical Engineering Hanyang University) ;
  • Choi Seung-kil (Dept. of Electrical Engineering Ansan college of technology) ;
  • Baek Soo-Hyun (Dept. of Electrical Engineering Dongguk University) ;
  • Lee Ju (Dept. of Electrical Engineering Hanyang University)
  • Published : 2005.06.01
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Abstract

This paper presents an analysis of the permanent magnet overhang effect for the permanent magnetic actuator. Generally, the overhang is often used to increase the force density in permanent magnet machineries. The overhang is particularly profitable in reducing the volume after increasing the force density per volume when using the overhang effect of the permanent magnet. Therefore, the 3D Equivalent Magnetic Circuit Network Method (3D EMCN) has been used in this paper. According to the plunger position, the flux distribution per overhang length and the holding force are quantitatively compared. Furthermore, an appropriate length of the overhang has been proposed. To confirm the accuracy of the analysis method, the results of 2D FEM and 3D FEM are compared for the basic model.

Keywords

References

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