基于定转子结构参数分层的永磁同步电机低振动优化设计  

Optimised Design of Permanent Magnet Synchronous Motor with Low Vibration Based on Stator-rotor Structural Parameter Hierarchy

作　　者：李放 卢炽华[1,2,3] 刘志恩 陈程[4] 程坤 LI Fang;LU Chi-hua;LIU Zhi-en;CHEN Cheng;CHENG Kun(Hubei Key Laboratory of Advanced Technology for Automotive Components,Wuhan University of Technology,Wuhan 430070,China;Hubei Collaborative Innovation Center for Automotive Components Technology,Wuhan 430070,China;Foshan Xianhu Laboratory,Foshan 528200,China;Wuhan Polytechnic Tongyu New Source Power Co.Ltd,Wuhan 430223,China)

机构地区：[1]武汉理工大学现代汽车零部件技术湖北省重点试验室,武汉430070 [2]汽车零部件技术湖北省协同创新中心,武汉430070 [3]佛山仙湖实验室,佛山528200 [4]武汉理工通宇新源动力有限公司,武汉430223

出　　处：《武汉理工大学学报》2024年第8期103-110,117,共9页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(52175111)。

摘　　要：为降低永磁同步电机在额定工况下峰值电磁振动,提出采用定转子结构参数多目标分层优化方法。首先建立多物理场耦合分析模型,探究机壳表面电磁振动分布特性,通过整机锤击法模态和台架振动测试验证了模型准确性;对定转子结构参数灵敏度分析,基于拉丁超立方(LHS)和中心复合设计(CCD)进行响应面试验设计,采用多目标遗传算法NSGA-Ⅱ对两层目标进行迭代得到最优解集,通过电磁振动仿真和转子强度分析,进行优化前后对比。结果表明,在满足输出性能和强度要求的同时,在全转速范围内48阶电磁振动明显改善,该优化方法可为电机噪声振动诊断及优化设计提供参考。In regard to reducing the peak electromagnetic vibration of permanent magnet synchronous motor under rated operating conditions,a multi-objective hierarchical optimisation method of stator-rotor structural parameters is proposed.Firstly,a multi-physical field coupling analysis model is establish to investigate the electromagnetic vibration distribution property on the surface of the casing,and the precision of the model is validated by the modal and bench vibration tests of the hammering method of the whole machine;the sensitivity analysis of the stator-rotor structural parameters is carried out,and the response surface experimental design is carried out based on the Latin Hyper Cubic(LHS) and the Central Composite Design(CCD),and the multi-objective genetic algorithm NSGA-Ⅱ is adopted to obtain the optimal solution set by iteratively iterating over the two layers of objectives,and the comparison before and after optimization is carried out through the electromagnetic vibration simulation and the rotor strength analysis.The optimal solution set is compared before and after optimisation by electromagnetic vibration simulation and rotor strength analysis.The results show that while meeting the output performance and strength requirements,the 48th-order electromagnetic vibration is significantly improved in the full speed range,and the optimisation method can provide a reference for the noise and vibration diagnosis and optimal design of the motor.

关 键 词：电磁振动 多物理场耦合 模态测试 分层优化 

分 类 号：TM351[电气工程—电机]