永磁同步电机定子结构仿真建模方法与等效参数预测  

Simulation Modeling Method and Equivalent Parameter Prediction for Stator Structure of Permanent Magnet Synchronous Motor

作　　者：杜彩霞 黄修鹏 李晓峰 唐元斌 Du Caixia;Huang Xiupeng;Li Xiaofeng;Tang Yuanbin(School of Rail Transit,Chongqing Industry and Information Vocational College,Chongqing 401220,China;Chongqing Deyin Technology Co.,Ltd.,Chongqing 400050,China;China Merchants Testing Vehicle Technology Research Institute Co.,Ltd.,National Coach Quality Inspection and Test Center,Chongqing 401329,China)

机构地区：[1]重庆工信职业学院轨道交通学院,重庆401220 [2]重庆德音科技有限公司,重庆400050 [3]招商局检测车辆技术研究院有限公司国家客车质量检验检测中心,重庆401329

出　　处：《机电工程技术》2024年第9期96-99,共4页Mechanical & Electrical Engineering Technology

基　　金：招商局检测车辆技术研究院有限公司科技发展基金项目(22AKC17)。

摘　　要：针对永磁同步电机定子系统的结构模态分析,考虑绕组绝缘层的刚度和绕组端部质量的影响,提出了一种结构仿真建模方法和等效参数调节方法。首先,分析定子叠片、绕组、绝缘层之间的相互作用关系,在定子叠片与等效绕组之间加等效绝缘层,各部件之间采用节点共享,并将定子叠片和等效绝缘层考虑为各向异性材料,构建定子系统仿真模型;其次,采用移动力锤法进行电机定子系统自由模态实验,得到定子系统的模态频率和模态振型;最后,基于模态分析的频率误差和振型相关性系数,调节各方向弹性模量和剪切模量,优化了定子系统各向异性材料参数,仿真结果与实验结果的模态频率误差最大为5.3%,振型相关性系数最小为0.6。结果表明,标定之后的仿真模态频率和模态振型与实验结果一致性较好。For the structural modal analysis of permanent magnet synchronous motor stator system,considering the stiffness of winding insulation layer and the quality of winding end,a structure simulation modeling method and equivalent parameter adjustment method are proposed.Firstly,the interaction between stator laminates,windings and insulators is analyzed,and the equivalent insulation layer is added between stator laminates and equivalent windings,and node sharing is adopted between each component.The stator laminates and equivalent insulators are considered as anisotropic materials,and the stator system simulation model is constructed.Secondly,the free mode experiment of motor stator system is carried out by the method of moving force hammer,and the modal frequency and modal mode of stator system are obtained.Finally,based on the frequency error and modal correlation coefficient of modal analysis,the elastic modulus and shear modulus in each direction are adjusted to optimize the anisotropic material parameters of the stator system.The modal frequency error between the simulation results and the experimental results is the maximum of 5.3%,and the modal correlation coefficient is the minimum of 0.6.The results show that the simulated modal frequency and modal modes after calibration are in good agreement with the experimental results.

关 键 词：电机定子系统 等效模型 模态分析 参数预测 

分 类 号：TM351[电气工程—电机]