基于SMO的永磁同步电机抖振分析及其改进  

Analysis and Improvement of Vibration in PMSM Based on SMO

作　　者：王文波 梅建伟[1] 韩文杰 Wang Wenbo;Mei Jianwei;Han Wenjie(School of Electrical&Information Engineering,Hubei University of Automotive Technology,Shiyan 442002,China;Spallation Neutron Source Science Center,Institute of High Energy Physics,Chinese Academy of Sciences,Dongguan 523803,China)

机构地区：[1]湖北汽车工业学院电气与信息工程学院,湖北十堰442002 [2]中国科学院高能物理研究所散裂中子源科学中心,广东东莞523803

出　　处：《湖北汽车工业学院学报》2024年第1期60-63,75,共5页Journal of Hubei University Of Automotive Technology

基　　金：湖北省教育厅科学技术研究计划项目(D20171802)。

摘　　要：针对传统基于SMO的永磁同步电机系统中存在抖振较大、观测精度差的问题,在传统SMO基础上,引入了自适应增益替代固定增益,采用双曲正切函数代替传统开关函数,提出了改进型SMO控制策略。在MATLAB/Simulink平台构建了系统仿真模型,对控制策略的效果进行验证并分析。结果表明:改进后的SMO控制策略显著减小了电机抖振,具备较高的转子位置估计精度。In view of obvious vibration and poor observation accuracy in traditional SMO-based perma-nent magnet synchronous motor systems,adaptive gains were introduced into the traditional SMO to re-place fixed gains,and a hyperbolic tangent function was used to replace the conventional switching function.As a result,an improved SMO control strategy was proposed.Furthermore,a system simulation model was constructed using the MATLAB/Simulink platform.The effect of the control strategy was veri-fied and analyzed.The experimental results show that the improved SMO control strategy significantly reduces motor vibration and has high accuracy in estimating rotor position.

关 键 词：SMO 双曲正切函数 自适应增益 抖振 

分 类 号：TM351[电气工程—电机]