基于Ansoft的稀土永磁无刷直流电机的电磁场分析  

Electromagnetic Field Analysis of Rare Earth Permanent Magnet Brushless DC Motor Based on Ansoft

作　　者：谢晓敏[1] 卜燕梅 夏佳青 

机构地区：[1]安徽新华学院电子通信工程学院,安徽合肥230088 [2]合肥爱家防辐射科技有限公司,安徽合肥230022 [3]湖北航达科技有限公司,湖北武汉430040

出　　处：《佳木斯大学学报（自然科学版）》2015年第3期420-422,425,共4页Journal of Jiamusi University：Natural Science Edition

基　　金：安徽省教育厅自然科学研究项目(KJ2013Z105)

摘　　要：以一个三相六状态两极的稀土永磁无刷直流电机作为分析模型,采用Ansoft有限元分析软件对电机电磁场进行了空载和负载两种瞬态的计算和仿真,得到了磁力线、磁通密度、磁阻力矩和反电动势曲线,并对气隙磁密和绕组电流进行了仿真分析.通过对两种工作状态的电磁场仿真结果对比分析,可以减少由于齿槽效应而产生的转矩脉动,为优化电机设计参数提供可靠依据,具有一定的工程意义.Taking a three-phase six-state rare earth permanent magnet poles brushless DC motor as an analytical model, electromagnetic field simulation were calculated using finite element analysis software Ansoft. And two no-load and load transients were simulated.The magnetic field lines, the magnetic flux density reluc-tance torque and counter electromotive force curve were gotten.The flux density and winding current were simu-lated.Through the work of the two states electromagnetic field simulation results analysis, the cogging torque rip-ple generated due to provide a reliable basis for optimal motor design parameters can be reduced.

关 键 词：稀土永磁无刷直流电机 齿槽效应 转矩脉动 

分 类 号：TM351[电气工程—电机]