无铁心双层绕组超导直线同步电机参数优化设计  

Optimal Design of a Coreless Double-layer-winding Superconducting Linear Synchronous Motor

作　　者：罗俊[1] 刘康[1] 赵正伟[1] 龚天勇[1] 崔李滨 李婧[1] 马光同[1] LUO Jun;LIU Kang;ZHAO Zhengwei;GONG Tianyong;CUI Libin;LI Jing;MA Guangtong(State Key Laboratory of Rail Transit Vehicle System,Southwest Jiaotong University,Chengdu 610031,Sichuan Province,China)

机构地区：[1]西南交通大学轨道交通运载系统全国重点实验室,四川省成都市610031

出　　处：《中国电机工程学报》2024年第21期8663-8672,I0028,共11页PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING

基　　金：国家自然科学基金项目(52107058,52037008)。

摘　　要：超导电动磁悬浮(electrodynamic suspension,EDS)技术具有自稳定、效率高、工作气隙大等优势,是高速磁悬浮列车发展的主要方向之一。以应用于超导电动悬浮列车的双层绕组直线同步电机为研究对象,首先,利用谐波分析法推导该电机电磁推力表达式并分析推力波动产生原因。接着,利用三维有限元法研究电机结构参数对电机推力及其波动的影响规律,明确主要结构参数的选取准则。针对磁场的空间衰减特性,提出内外层绕组结构匹配设计方法。然后,基于上述研究确定了一套实验样机尺寸参数,并仿真分析样机电磁性能。最后,研制实验样机并通过推力测量,验证设计方法与理论分析的有效性。Superconducting electrodynamic suspension(EDS)has the advantages of self-stability,high efficiency and large working air gap,and is one of the main options for high-speed maglev trains.In this paper,the double-layer winding linear synchronous motor used in EDS train is investigated.First,the thrust expression of the motor is derived by harmonic analysis method and the cause of thrust fluctuation is analyzed.Then,three-dimensional finite element method is used to study the effect of motor structure parameters on the thrust and fluctuation,and the selection criteria of main structure parameters are defined.According to the spatial attenuation characteristic of magnetic field,a matching design method of inner and outer layer winding is proposed.Then,based on the above research,the size parameters of an experimental prototype are determined,and the electromagnetic performance of the prototype is simulated and analyzed.Finally,the experimental prototype is developed,and the effectiveness of the design method and theoretical analysis was verified by measured thrust force.

关 键 词：直线电机 超导电机 双层绕组 推力波动 优化设计 电动磁悬浮 

分 类 号：TM359.4[电气工程—电机]