关键词: 永磁辅助同步磁阻电机, 转矩特性, 粒子群优化, 多目标优化

Abstract: Permanent magnet assisted synchronous reluctance motor ( PMA-SynRM ) is a new type of motor that integrates the features of permanent magnet synchronous motor and synchronous reluctance motor. In this article, a 550 W PMA- SynRM was taken as an example. The multilayer magnetic barrier structure on its rotor and the length and width of the permanent magnet are parametrized and the effects of the parameters of the permanent magnet and the magnetic barrier on the average torque and torque ripple of the PMA-SynRM are investigated. The motor was also optimized by a multi-objective
global optimization using a joint Maxwell Workbench optiSLang simulation method based on particle swarm algorithm and the quadratic regression model of the high sensitivity parameters with the average torque, torque pulsation and cogging torque was established, and the final optimization result was selected in the set of optimal solutions of the Pareto frontier diagram on demand and the effectiveness of the offered multi-objective optimization design method was verified by comparing the average torque,torque ripple and cogging torque of the motor before and after optimization.

Key words: permanent magnet assisted synchronous reluctance motor( PMA-SynRM), torque characteristics, particle swarm optimization( PSO), multi-objective optimization