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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  );
  • 초록

    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.


  • 주제어

    Demagnetization .   Equivalent Magnetic Circuit Network Method(EMCNM) .   Nonlinear Analysis .   Permanent Magnetic Actuator (PM Actuator).  

  • 참고문헌 (6)

    1. In-Soung Jung, Jin Hur, Dong-Seok Hyun, '3-D analysis of permanent magnet linear synchronous motor with magnet arrangement using equivalent magnetic circuit network method', Magnetics, IEEE Transactions on , Volume: 35 Issue: 5 , Sep 1999 
    2. ?Brno Lequesne, 'Fast Acting, Long Stroke, Bistable Solenoids with Moving Permanent Magnet' Industry Applications, Industry Applications, IEEE Transactions on , Volume: 26 Issue: 3 , May/Jun 1990 
    3. ?Rao, A.S., 'Alnico permanent magnets an overview' Electrical Electronics Insulation Conference and Electrical Manufacturing & Coil Winding Conference, 1993. Proceedings., Chicago '93 EEIC/ICWA Exposition, 4-7 Oct 1993 
    4. ?Jin Hur and Dong-Seok Hyun, Jung-Pyo Hong, 'A method for Reductionof cogging Torque in Brushless DC Motor Considering the Distribution of Magnetization by 3DEMCN', Magnetics, IEEE trans. on ,vol.34, NO 5, September, 1998 
    5. ?Lin Xin, Gao Huijun, Cai Zhiyuan, 'Magnetic field Calculation and Dynamic Behavior Analysis of The Permanent Magnetic Actuator' Discharges and Electrical Insulation in Vacuum, 2000. Proceedings. ISDEIV XIXth International Symposium on , Volume: 2, 2000 
    6. ?Introduction to Magnetic Actuator of IPEC Ltd 

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