高温超导直线感应电机的优化设计  

Optimal Design of HTS Linear Induction Motors

作　　者：赵佳[1] 郑琼林[1] 张威[1] 方进[1] 刘友梅[1] 

机构地区：[1]北京交通大学电气工程学院,北京100044

出　　处：《电工技术学报》2011年第6期33-38,共6页Transactions of China Electrotechnical Society

基　　金：国家863计划资助课题(2008AA03Z203)

摘　　要：详细讨论了高温超导直线感应电机的结构设计和初级绕组排列方式,给出了高温超导带材临界电流和背景磁场的关系曲线。采用Maxwell有限元电磁分析软件对高温超导直线感应电机进行了详细的电磁分析,并对初级绕组匝数、初级铁心槽高和初级铁心槽宽等关键参数进行了参数扫描和优化,分析了它们对电机电磁力、初级槽漏磁通和电机临界电流的影响,提出了高温超导直线感应电机的优化设计方法。根据得到的高温超导直线感应电机优化设计参数制造了一台完全相同的铜绕组实验样机,测试了样机在不同电流和速度下的推力,对比相同条件下得到的有限元电磁仿真结果,可以得到一个修正推力仿真结果的系数,这个系数对研究不同电机参数的电机推力很有意义。The structure design and primary winding arrangment of a high temperature superconductor linear induction motor（HTS LIM） are discussed in detail.The relationship curve between the critical current and background field of the HTS tape is given.Using the finite element analysis software Maxwell the electromagnetic properties of the HTS LIM are analyzed.And the key parameters such as the primary coil number,primary slot height and primary slot width are sweeped and optimized.The influence of these key parameters on the thrust force,primary slot leakage flux and critical current of the HTS LIM is also analyzed.Based on the analysis the optimal design method is proposed.According to the structure and the parameters of the HTS LIM a prototype linear induction motor with copper primary windings is manufactured.The thrust force of the prototype motor is tested with different currents and speeds.Comparing the test results with the simulation results a modified coefficient of the thrust is obtained.This coefficient is meaningful for studying the thrust force with different motor parameters.

关 键 词：高温超导直线感应电机 优化设计 有限元分析 电磁特性 临界电流 

分 类 号：TM273[一般工业技术—材料科学与工程]