基于等效面电流法表面贴磁圆筒型永磁直线电机磁场研究  

Magnetic Field Research of Tubular PM Linear Motor with Surface-Mounted Permanent Magnets Based on Equivalent Surface Current Method

作　　者：黄克峰[1] 李槐树[1] 王秀静 周羽[1] 

机构地区：[1]海军工程大学电气工程系,湖北武汉430033 [2]山推楚天工程机械有限公司,湖北武汉430200

出　　处：《防爆电机》2013年第5期1-6,共6页Explosion-proof Electric Machine

摘　　要：气隙磁场是表面贴磁式圆筒型永磁直线电机的重要参数,它对该种电机的推力密度、效率等性能影响很大。通过建立等效面电流模型得出了计算气隙磁场的准确解析公式,再与有限元法计算结果进行对比,得出了该解析法有效的结论。The air-gap magnetic field is an important parameter for tubular PM linear mo- tor with surface-mounted permanent magnet. It has significant influence on the thrust force den- sity and efficiency. The accurate analytical formulas for calculating air-gap magnet field were given out through establishing equivalent surface current model. The analytical method is proved to be effective by comparing with the results of finite element method.

关 键 词：表面贴磁式圆筒型永磁直线电机 等效面电流模型 气隙磁场 

分 类 号：TM301.2[电气工程—电机] TM359.4