Halbach阵列半闭口槽永磁电机全局解析法研究  

Researches on an Exact Analytical Method of Halbach-array Permanent-magnet Motors With Semi-closed Slots

作　　者：李琛[1] 章跃进[1] 井立兵[1] 

机构地区：[1]上海大学机电工程与自动化学院,上海市闸北区200072

出　　处：《中国电机工程学报》2013年第33期85-94,11,共10页Proceedings of the CSEE

基　　金：国家自然科学基金重点资助项目(51177097)~~

摘　　要：Halbach阵列永磁电机具有出色的转矩输出性能,适用于高精度伺服系统。准确获得其磁场分布是Halbach阵列永磁电机设计及优化的关键。该文采用二维全局解析法分析Halbach阵列永磁电机气隙磁场,为了与实际电机槽型尺寸尽可能接近,定子槽区域划分为槽口和槽身区域。解析所得的气隙磁密、齿槽转矩、电磁转矩、磁链和反电动势波形以及绕组电感值,与有限元分析结果一致性较好,其中反电动势波形与试验测试波形趋势一致,验证了所提解析模型的合理性。Halbach arrays permanent-magnet （HAPM） motors are appropriate for high-precision servo system in consideration of their outstanding torque output performance. The key in design and optimization to ensure excellent performance of the HAPM motors is that how to predict the internal magnetic fields distribution accurately. The analytical sub-domains of stator slots are divided into slot-openings and slots. As a consequence, a two-dimensional exact analytical method fits HAPM motors with semi-closed slots is proposed, for predicting their air-gap magnetic fields, cogging torque, output torque, flux linkage, back electromotive force （back-EMF） and the armature winding inductances. Results from this analytical method are compatible with corresponding finite element analysis （FEA）, and the back-EMF waveform of them is basically in accordance with that of experiment, which supports the reasonability of the proposed analytical model.

关 键 词：Halbach阵列永磁电机 半闭口槽 空载气隙磁场 电枢反应磁场 负载气隙磁场 全局解析法 

分 类 号：TM341[电气工程—电机]