食品与机械2016，Vol.32Issue(11)：93-97,228,6.DOI:10.13652/j.issn.1003-5788.2016.11.021
无刷直流外转子电机结构参数优化
Optimal design on a brushless DC external rotor motor
摘要
Abstract
Cogging torque ripple is the main impact factor of the out-put torque ripple of electric vehicles driven by wheel hub motors.To suppressing cogging torque ripple,a DC external rotor motor was studied,and a finite element analysis model was established in Ansoft Maxwell according to its structural parameters. The simulation results of cogging torque agreed well with those obtained from experiments,and this showed the analysis model was correct. Then,the main parameters of the hub motor were optimized by using Taguchi method,in which the peak values of cogging torque and average values of output torque were taken as the optimization goals,the slot width,pole arc coefficient,air gap length and parallel tooth width as the control factors,the processing errors of notch width,air gap length and parallel tooth width,and residual magnet-ism variation as noise factors.The performances of the motor were simulated in the finite element analysis model with optimal structural parameters.The results showed that the cogging torque of the motor was reduced significantly,and the average values of output torque were increased slightly at the same time.关键词
优化设计/Taguchi方法/齿槽转矩/直流外转子电机/有限元分析Key words
optimal design/Taguchi method/cogging torque/DC ex-ternal rotor motor/finite element analysis引用本文复制引用
刘志强,舒刚华,杜荣华,杨中华..无刷直流外转子电机结构参数优化[J].食品与机械,2016,32(11):93-97,228,6.基金项目
国家自然科学基金(编号:11572055) （编号:11572055）
交通运输部基础应用研究项目(编号:2013319825090) （编号:2013319825090）
长沙市科技局项目(编号:K1301006-11) （编号:K1301006-11）
