微特电机 ›› 2018, Vol. 46 ›› Issue (6): 58-61.doi: 1004-7018-46-6-58-61

• 研究论文 • 上一篇    下一篇

基于GPR-PSO模型的PMSM齿槽转矩抑制

杜晓彬,黄开胜,谭耿锐,黄信   

  1. 广东工业大学,广州 510006
  • 收稿日期:2017-02-24 出版日期:2018-06-20 发布日期:2018-07-03

Reducing Cogging Torque of PMSM Based on GPR-PSO Model

Xiao-bin DU,Kai-sheng HUANG,Geng-rui TAN,Xin HUANG   

  1. Guangdong University of Technology,Guangzhou 51006,China
  • Received:2017-02-24 Online:2018-06-20 Published:2018-07-03

摘要:

齿槽转矩是永磁电机特有的问题之一,是电机设计过程中必须考虑以及解决的关键问题。为了抑制表贴式永磁同步电动机(PMSM)的齿槽转矩,以PMSM齿槽转矩幅值为目标,以极弧系数、偏心距、磁钢充磁方式、定子槽口宽度为变量,研究了通过GPR-PSO模型方法来进行抑制齿槽转矩。利用正交实验设计安排了变量的配对,以一款48槽8极PMSM为例进行仿真,形成关于齿槽转矩幅值与变量的样本数据集。通过高斯混合回归模型(GPR)对该样本数据集进行拟合,构建拟合函数,检验了拟合模型的精度。以构建的拟合函数为适应度函数,通过粒子群算法(PSO)进行寻优,得到最优解,削弱了PMSM的齿槽转矩。结果表明,GPR-PSO模型能有效降低电机的齿槽转矩。

关键词: 永磁同步电动机, 齿槽转矩, 正交实验设计, 高斯过程回归, 粒子群算法

Abstract:

The cogging torque is one of the unique problems of permanent magnet motor, being the key problem to be considered and solved in the process of motor design. In order to reduce the cogging torque of surface-mounted permanent magnet synchronous motor (PMSM), the amplitude of cogging torque being as the goal, embrace, offset, magnet magnetizing mode and stator slot width as variables, cogging torque was optimized through GPR-PSO model. By using the orthogonal design for paired variables with a 48-slot-8-pole PMSM simulated, the variable set of the sample data of cogging torque amplitude was formed. Fitting the data set by Gauss process regression GPR model, the fitting function was constructed to test the accuracy. Through particle swarm algorithm (PSO) optimization, the fitting function being as fitness function, optimal solution was obtained and cogging torque of PMSM was reduced. The results show that the GPR-PSO model can effectively reduce the cogging torque of the motor.

Key words: permanent magnet synchronous motor (PMSM), cogging torque, orthogonal experimental design, GPR, PSO algorithm

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