Optimal Stator Design of Interior Permanent Magnet Motor to Reduce Torque Ripple Using the Level Set Method

被引:72
作者
Kwack, Jeonghu [1 ]
Min, Seungjae [1 ]
Hong, Jung-Pyo [1 ]
机构
[1] Hanyang Univ, Dept Automot Engn, Seoul 133791, South Korea
关键词
Finite element method; interior permanent magnet (IPM) motor; level set method; optimal stator design; torque ripple; OPTIMAL SHAPE DESIGN; TOPOLOGY OPTIMIZATION; SYNCHRONOUS MOTOR; IPM MOTOR;
D O I
10.1109/TMAG.2010.2044871
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
Interior permanent magnet (IPM) motor is widely used for many industrial applications and has relatively high torque ripple generated by reluctance torque which results in noise and vibration. Since the configuration of the stator has great influence on reluctance torque, design optimization is necessary to improve the torque performance of IPM motor. In this paper, structural optimization based on the level set method is formulated to reduce torque ripples by minimizing the difference between torque values at defined rotor positions and the constant target average torque value under the constrained material usage. The nonlinear ferromagnetic material boundary of the stator is implicitly represented through an embedded level set function and the movement of the material boundary is driven by the normal velocity derived from optimality and convergence conditions of the level set equation. The proposed method is applied to design the optimal stator configurations of a traction motor of hybrid electric vehicle and presents the improved torque characteristics of IPM motor.
引用
收藏
页码:2108 / 2111
页数:4
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