HTS磁浮系统中直线驱动电机的电流瞬时值法推力分析  

THE ANALYSIS OF THE THRUST ON THE LINEAR DRIVER WITH INSTANTANEOUS CURRENT VALUE IN HTS MAGLEV SYSTEM

作　　者：马家庆[1] 周大进[1] 赵立峰[1] 梁纲[1] 张勇 赵勇[1,2] 

机构地区：[1]西南交通大学超导与新能源研究开发中心,磁浮技术与磁浮列车教育部重点实验室,成都610031 [2]西南威尔士大学材料科学与工程学院,澳大利亚悉尼2052

出　　处：《低温物理学报》2015年第1期46-53,共8页Low Temperature Physical Letters

基　　金：国家磁约束核聚变能研究专项(批准号:2011GB112001,2013GB110001);国际合作项目(批准号:2013DFA51050);国家自然科学基金(批准号:51271155,51377138);中央高校基本科研业务费(批准号:SWJTU11ZT31,2682013CX004);四川省科技计划(批准号:2011JY0031,2011JY0130)资助的课题~~

摘　　要：从初级绕组中空间上离散的行波电流理论出发,用瞬时电流值方法讨论HTS磁浮系统中长初级直线感应电动机初、次级之间不同相对位置下的三种运行状态时的推力情况.三种状态为次级导板相对于初级产生的磁场区域空间的进入、保持、离开.其中进入、离开两种状态产生了直线电机的纵向端部效应,对推力的分布有很大影响.分析结果展示了具体影响情况.最后实验结果验证了推导结果,表明推导的合理性,对直线感应电机的设计有参考作用.In this paper, a linear induction motor（LIM） in HTS maglev system with three-phase double-layer winding on primary and secondary conductive sheet is considered with the primary instantaneous current value to a- nalysis three running states of the LIM. According to the position of the air gap＇s magnetic field and the secondary, the three running state is entering, maintaining and exiting. The entering and the exiting states are sophisticated because of the LIM＇s longitudinal end effect. The thrust varies under different states. And then the thrust of the LIM is calculated base on that. At last the experimental data is used to verify the reasonable of that method. The result demonstrates its reference value of LIM＇s design in reality.

关 键 词：高温超导 直线电机 电流瞬时值 离散分布 次级导板 

分 类 号：TM346[电气工程—电机]