Two-Dimensional Analytical Calculation of Magnetic Field and Electromagnetic Torque for Surface-Inset Permanent-Magnet Motors

被引：79
作者：
Lubin, Thierry [1 ]
Mezani, Smail [1 ]
Rezzoug, Abderrezak [1 ]
机构：
[1] Univ Henri Poincare, Grp Rech & Electrotech & Elect Nancy, Nancy, France
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2012年 / 48卷 / 06期
关键词：
Analytical calculation; magnetic field distribution; reluctance torque; surface-inset permanent-magnet machine; BRUSHLESS DC MOTORS; SYNCHRONOUS MACHINES; COGGING TORQUE; PREDICTION; ACCOUNT; MODEL;
D O I：
10.1109/TMAG.2011.2180918
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The paper deals with a subdomain model for predicting the magnetic field distribution in surface-inset permanent-magnet (PM) motors with semi-closed slots under load conditions. Due to the presence of electrical current in the stator slots, a magnetic vector potential formulation is used. The magnetic vector potential distribution in each subdomain (air-gap, stator slots, and rotor slots with inset PMs) is obtained by solving two-dimensional Laplace's and Poisson's equations by the separation of variables method. One of the main contributions of the paper concerns the magnetic vector potential expression in the PM region. Indeed, PMs are inset into the rotor iron which leads to solve Laplace's equation with nonhomogeneous Neumann boundary conditions. Magnetic field distribution and electromagnetic torque computed with the proposed analytical method are verified with those obtained from finite-element analyses.
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收藏
页码：2080 / 2091
页数：12
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