摘要：首先基于传统的电机本体设计方法，获得一台15 kW、102 V的内嵌式永磁电动机的基本设计参数，然后利用基于等效磁路法的RMXPRT软件对该内嵌式永磁电动机的一些重要设计参数进行优选，得到较为理想的参数范围。最后，引入一种新颖的优化方法——田口法，以内嵌式永磁电动机的气隙长度、永磁体厚度与宽度、磁桥长度和宽度作为优化变量，以效率和磁钢用量作为优化目标对电机进行优化设计。确定最优方案后将其导入到电磁场有限元分析软件Maxwell进行仿真，以对所设计电机进行合理性分析。优化后效果明显，对实际应用具有一定的指导意义。

关键词：内嵌式永磁电动机；田口法；优化设计；有限元分析
Abstract: Firstly, the preliminary parameters of a 15 kW, 102 V interior permanent magnet motor were obtained by the traditional method of machine design. Then, some important parameters were preferred to gain more perfect parameter range by the method of RMXPRT software based on the equivalent magnetic circuit. A novel Taguchi method was introduced to optimize the air gap, the thickness and width of the permanent magnet, the length and width of the magnetic bridge to get higher efficiency and less magnet dosage. After that, the better design scheme was simulated in an electromagnetic field finite element analysis software, Maxwell to analyse the rationality of the design. The effect of optimization was obvious, with the function to guide the practical application.

Key words: interior permanent magnet motor; Taguchi method; optimization design; finite element analysis