摘要
采用场路耦合法对永磁同步电机高频径向电磁力特征频率产生原因和主要组成成分进行研究。通过解析法分析谐波电流的产生机理及谐波特性,并利用数值仿真对其进行验证;结合磁动势−磁导法和麦克斯韦张量法分析出高频径向电磁力特征频率的分布;对有限元计算得到的气隙磁场进行时空分解,采用麦克斯韦张量法计算磁场相互作用产生的高频径向电磁力。结果表明,变频驱动下永磁同步电机的高频径向电磁力主要是由变频器谐波电流引入的谐波磁场和定子基波磁场的相互作用产生,这对永磁同步电机的研究提供了一定的指导意义。
By using the field-route coupling method,the causes and main components of the high frequency radial electromagnetic force characteristic frequency of permanent magnet synchronous motor were studied.The generation mechanism and harmonic characteristics of harmonic current were analyzed by analytical method,and verified by numerical simulation.The characteristic frequency distribution of high frequency radial electromagnetic force was analyzed by means of the magnetomotive force permeability method and Maxwell tensor method.The air gap magnetic field obtained by finite element calculation was decomposed in time and space,and the high frequency radial electromagnetic force generated by magnetic field interaction was calculated by Maxwell tensor method.The results show that the high frequency radial electromagnetic force of PMSM driven by frequency conversion is mainly generated by the interaction between the harmonic magnetic field and the stator fundamental magnetic field introduced by the harmonic current of the frequency converter,which has certain guiding significance for the research of PMSM.
作者
王振
郭辉
冯庆宝
王岩松
刘宁宁
WANG Zhen;GUO Hui;FENG Qingbao;WANG Yansong;LIU Ningning(School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620,China;Dongying Technician College,Dongying 257091,China)
出处
《上海工程技术大学学报》
CAS
2024年第3期231-239,共9页
Journal of Shanghai University of Engineering Science
基金
国家自然科学基金资助(52172371)。
关键词
变频器
谐波电流
永磁同步电机
气隙磁场
高频径向电磁力
frequency converter
harmonic current style
permanent magnet synchronous motor
air-gap magnetic field
high frequency radial electromagnetic force
