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- Title
基于分层优化策略的永磁同步电机 转子结构多目标优化.
- Authors
杨尚明; 马其华
- Abstract
The permanent magnet synchronous motor (PMSM) has a high requirement on the smoothness of torque output. Due to influences of groove torque, reluctance torque pulsation, electromagnetic torque pulsation and. other factors, the output torque pulsation of the interior PMSM is relatively large, which increases electromagnetic noise and output instability. A 五nite element model was established based on a 20 kW PMSM, and the accuracy of the model was verified. Taking the maximum output torque, the minimum torque pulsation and the minimum slot torque as optimization objectives, the sensitivity analysis of rotor structure parameters was carried out, and the stratified optimization was carried out by combining NSGA-H algorithm and single variable parameter method. Compared with single-layer optimization, stratified optimization has a better effect on the target which is susceptible to variables. The acoustic simulation shows that the optimized rotor structure can improve electromagnetic noise significantly.
- Subjects
PERMANENT magnet motors; ELECTROMAGNETIC noise; TORQUE; SENSITIVITY analysis; STRATIFIED flow; SUBSTRATE integrated waveguides
- Publication
Journal of Shanghai University of Engineering Science / Shanghai Gongcheng Jishu Daxue Xuebao, 2022, Vol 36, Issue 4, p369
- ISSN
1009-444X
- Publication type
Article