超导电动悬浮试验线悬浮系统设计及验证  

Design and verification of levitation system for superconducting electrodynamic suspension test line

作　　者：谭富星 李凯 于淼 王爱彬 杨晶 李小汾 TAN Fuxing;LI Kai;YU Miao;WANG Aibin;YANG Jing;LI Xiaofen(Maglev Research Institute,CRRC Changchun Railway Vehicles Co.,Ltd.,Changchun,Jilin 130062,China;Department of Electrical Engineering,Shanghai Jiaotong University,Shanghai 200240,China)

机构地区：[1]中车长春轨道客车股份有限公司磁浮研究所,吉林长春130062 [2]上海交通大学电气工程系,上海200240

出　　处：《机车电传动》2024年第3期13-18,共6页Electric Drive for Locomotives

基　　金：吉林省科技发展计划(20220201002GX,20230201124GX);中国中车股份有限公司原创技术十年培育专项(2022CGY014)。

摘　　要：超导电动悬浮是一种面向高速、超高速运行的磁浮交通制式。在超导电动悬浮系统线圈结构和电磁参数设计确定后,其悬浮力和导向力的变化规律无法通过车载控制器进行调整,因此线圈的尺寸设计至关重要。文章从工程角度出发阐述分析可行的电动悬浮系统设计方法:基于动态电路方程和虚功原理,计算某一参数条件下的平均悬浮力峰值,结合制造工艺与成本获得悬浮线圈结构参数;随后计算该尺寸“8”字形线圈尺寸与超导磁极的作用关系,获得车重与平均悬浮力相等时的偏移量,即悬浮系统稳态工作的平衡位置,并得到“8”字形线圈尺寸对平均悬浮力的峰值影响规律:在其他变量保持不变时,半线圈高度对平均悬浮力峰值具有极大值点,绕组宽度和线圈厚度对平均悬浮力峰值分别为单调增函数;最后,依托中车长春轨道客车股份有限公司超导电动试验线进行了悬浮系统测试试验,实测车辆垂向平均高度相比计算获得的平衡位置相差0.56mm,校核了该设计方法的准确性和有效性。Superconducting electrodynamic suspension is a maglev transportation system for high-speed and ultra-high-speed operation.After the design of the coil structure and electromagnetic parameters of the superconducting electrodynamic suspension system is finalized,the change patterns of the levitation force and guiding force cannot be adjusted by the onboard controller.Therefore,the size of the coil is very important.From an engineering perspective,the feasible design method for the electrodynamic suspension system was expounded and analyzed in this study.Firstly,based on the dynamic circuit equation and virtual work principle,the peak value of the average levitation force under a certain parameter condition was calculated.And the structure parameters of the levitation coil were obtained by conducting a process and cost analysis.Then,the relationship between the size of the"8"shaped coil and the superconducting magnetic poles was calculated,and the vertical offset when the vehicle weight was equal to the average levitation force was obtained,which was the steady-state working balance position of the levitation system.In addition,the influence pattern of the"8"shaped coil size on the peak value of average levitation force was determined:the half coil height exhibited an extremely large point for the peak value of the average levitation force,and the winding width and coil thickness were monotonic increasing on the function of the peak value of the average levitation force respectively,if other variables remain unchanged.Finally,the levitation system test was carried out on the superconducting electrodynamic suspension test line of CRRC Changchun Railway Vehicles Co.,Ltd..The test results show that the difference between the measured vertical average height of the vehicle and the calculated balance position is 0.56 mm,which have checked the accuracy and effectiveness of the design method for the levitation system.

关 键 词：电动悬浮 悬浮系统 设计方法 试验线 

分 类 号：U237[交通运输工程—道路与铁道工程]