磁体斜边永磁电机铁耗的解析计算  

Analytical Calculation of Iron Loss of Permanent Magnet Motor with Beveling Edges

作　　者：王海田[1] 李格[1,2] 洪宣[1] 万如意[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240 [2]中国科学院等离子体物理研究所,安徽合肥230031

出　　处：《华南理工大学学报（自然科学版）》2010年第7期62-66,共5页Journal of South China University of Technology(Natural Science Edition)

基　　金：教育部博士点基金资助项目(20060248012);上海-加拿大研究理事会合作基金资助课题(06SN07113);中国科学院合肥物质科学研究院院长基金项目(YZJJ-4);国家"973"计划资助项目(2010GB108003)

摘　　要：基于Slemon等表面置磁型永磁电机(PMSM)的改进铁耗算法,推导了考虑磁体边缘斜角时定子齿与轭的磁通密度的幅值及其时间变化率的表达式,提出了永磁电机定子齿与轭平均涡流损耗密度的解析计算方法,由此建立了永磁电机铁耗的解析模型.结果表明:磁体边缘斜角技术能有效地减少铁耗.实验和模型计算结果吻合,验证了该方法的正确性和有效性.Based on the developed iron loss algorithm of surface-mounted permanent magnet （ PM） motors such as Slemon,and so on,the expressions of the amplitude and its time rate change of flux density in the teeth and in the yoke are derived with the consideration of the beveling edges of PM. Then,a method to analytically calculate the average eddy-current loss density in the teeth and the yoke is presented,and an analytical model of the iron loss of PM motor with beveling edges is presented,finding that beveling edges help to effectively decrease the iron loss. A very good agreement between the experimental results and the calculated ones shows that the proposed method is correct and effective.

关 键 词：永磁电机 涡流损耗 铁耗 解析计算 

分 类 号：TM503.1[电气工程—电器]