基于田口法-响应面法的永磁同步电机优化设计  

Optimal of Permanent Magnet Synchronous Motor Design Based on Taguchi Method-Response Surface

作　　者：张学成 汪选要[1] 林东 ZHANG Xuecheng;WANG Xuanyao;LIN Dong(School of Mechanical Engineering,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学机电工程学院,安徽淮南232001

出　　处：《东莞理工学院学报》2025年第1期122-128,共7页Journal of Dongguan University of Technology

基　　金：安徽理工大学环境友好材料与职业健康研究院(芜湖)研发专项(ALW2021YF05);安徽省自然科学基金项目(1908085ME159);安徽省博士后研究人员科研活动经费资助项目(2020B447)。

摘　　要：为提高电机电磁性能,降低齿槽转矩,提出了一种以田口法-响应面法为基础,对永磁同步电机进行多目标优化设计的方法。首先通过计算出齿槽转矩的表达式,分析不同转子分段数对电机性能的影响并确定其优化范围;其次,采用田口方法对永磁宽度、气隙长度、齿宽等结构参数进行了选择;然后以转子分段数为离散点,在此基础上,对电动机的结构参数进行连续点建模,得到多个目标的优化求解;最后,通过有限元分析软件对优化前后的电机性能进行了比较。计算结果显示,优化前后的齿槽力矩、转矩脉动系数和气隙磁通的振幅分别下降了3.9%、68.6%和3.9%,电机的效率区域在95%以上的占比提高了2.18%,为电机性能优化提供了一定的参考价值。In view of improving the electromagnetic performance of the motor and to reduce the cogging torque,this document proposes a multi-objective optimization design method for permanent magnet synchronous motors using the Taguchi method-response surface method as the basis.Firstly,the expression for cogging torque is obtained to analyze the impact of variable number of rotor segments on the performance of the motor and to determine its optimization range.Secondly,the structural parameters such as permanent magnet width,air gap length and tooth width are selected by Taguchi method.Then the response surface model is established with the number of rotor segments as the discrete point and the structural parameters of the motor were modeled as continuous points,and the optimization solution with multiple objectives was obtained.Finally,the performance of the motor before and after optimization was compared by finite element analysis software.The calculation results show that the cogging torque,torque pulsation coefficient and the amplitude of the air gap flux before and after optimization have decreased by 3.9%,68.6%and 3.9%,respectively,and the high efficiency region of the motor is improved by 4.6%,which offers some reference for the optimization of the motor performance.

关 键 词：永磁同步电机 斜极分段 田口法-响应面法 有限元分析 

分 类 号：U46[机械工程—车辆工程]