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http://dx.doi.org/10.5370/KIEE.2011.60.4.759

Assistant Model For Considering Slot-Opening Effect on No-load Air-gap Flux Density Distribution in Interior-type Permanent Magnet Motor  

Fang, Liang (한양대 공대 자동차공학과)
Kim, Do-Jin (한양대 공대 자동차공학과)
Hong, Jung-Pyo (한양대 공대 자동차공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.60, no.4, 2011 , pp. 759-765 More about this Journal
Abstract
This paper proposes an effective assistant model for considering the stator slot-opening effect on air gap flux density distribution in conventional interior-type permanent magnet (IPM) motor. Different from the conventional slot-opening effect analysis in surface-type PM (SPM) motor, a composite effect of slot-opening uniquely existing in IPM motor, which additionally causes enhancement of air gap flux density due to magnet flux path distortion in iron core between the buried PM and rotor surface. This phenomenon is represented by a proposed assistant model, which simply deals with this additional effect by modifying magnetic pole-arc using an effective method. The validity of this proposed analytical model is applied to predict the air gap flux density distribution in an IPM motor model and confirmed by finite element method (FEM).
Keywords
Assistant model; Analytical method; Effective magnetic pole-arc; FEM; SPM/IPM motor;
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  • Reference
1 Gyu-Hong Kang, Jung-Pyo Hong and Gyu-Tak Kim, "Analysis of Cogging Torque in Interior Permanent Magnet Motor by Analytical Method," Journal of KIEE. 11B. 1-8 (2001).
2 Li. Zhu, S.Z. Jiang, Z.Q. Zhu, and C.C. Chan, "Analysis and Modeling of Opening-circuit Airgap Field Distribution in Multi-segment and Multilayer Interior Permanent Magnet Machiens," IEEE VPPC, September 3-5, 2008.
3 Z.Q. Zhu, "Instantaneous magnetic field distribution in brushless permanent magnet dc motors. Part 3, Effect of stator slotting," IEEE Trans. Magn., vol.29, pp.143-151, Jan 1993.   DOI   ScienceOn
4 K. J. NINNS and P. J. LAWRENSON. Analysis and Computation of Electric and Magnetic Field Problems (SECOND EDNITION), chapter 8, PERGAMON PRESS, 1973.
5 Nicola Bianchi and Thomas M. Jahns, Design, Analysis, and Control of Interior PM Synchronous Machines. IEEE Industry Applications Society Annual Meeting Seattle, USA, October 3rd, 2004
6 Miroslav Markovic, Marcel Jufer and Yves Perriard "Reducing the Cogging Torque in Brushless DC Motors by Using Conformal Mappings," IEEE Transactions on Magnetics., vol.40, no.2, March.2002.
7 Z.Q. Zhu, D. Howe, "Analytical prediction of the cogging torque in radial-field permanent magnet brushless motors," IEEE Trans. Magn., vol.28, no.2. pp1317-1374.