栅格次级双边直线感应电机特性  

Characteristics of Double Sided Linear Induction Motors with Ladder-Slit Type Secondary

作　　者：张志华[1,2] 史黎明[1] 李耀华[1] 

机构地区：[1]中国科学院电力电子与电气驱动重点实验室(中国科学院电工研究所),北京100190 [2]中国科学院大学,北京100049

出　　处：《电工技术学报》2014年第3期103-110,共8页Transactions of China Electrotechnical Society

基　　金：中国科学院知识创新工程重要方向资助项目(KGCX2-YW-309)

摘　　要：分析了长初级双边型直线感应电机(DSLIM)无铁心栅格次级中感应涡流稳态特性,推导出直线感应电机栅格次级电阻、漏感计算公式,提出一种考虑次级端部导条电阻和纵向边端效应的栅格次级DSLIM等效电路,利用场路联合方法简化了栅格次级DSLIM有限元分析模型。计算并测试对比了栅格次级和平板次级在同一初级下的堵转特性,验证了等效电路和场路联合两种计算方法的正确性。结果表明,栅格次级能消除直线感应电机的第二类横向边端效应、规范气隙横向磁场、提高电机力功比。This paper investigates double-sided linear induction motor （DSLIM） with ladder-slit type coreless secondary. The steady characteristics of induced eddy current in secondary is analyzed, the calculation formulas of resistance and leakage inductance of ladder-slit type secondary are deduced, and the equivalent circuit of ladder-slit type secondary DSLIM is proposed considering the contact resistance between secondary conductors and longitudinal end effect. Field-circuit coupled method is presented for analysis of ladder-slit type secondary DSLIM. The characteristics of locked DSLIM with plate and ladder-slit type secondary under the same primary are tested and calculated, which verify the validity of two calculation methods and show that the ladder-slit type secondary DSLIM can eliminate the second transverse end effects, standardize eddy current path, and improve the ratio of thrust to power.

关 键 词：双边直线感应电机 栅格次级 边端效应 等效电路 推力特性 

分 类 号：TM315[电气工程—电机]