Characteristic Analysis and Experiment of the Equivalent Simulation System for Null-Flux Electrodynamic Suspension
Wang Yiyu1, Cai Yao2, Song Xuliang1, Li Gang1, Ma Guangtong1
1. State Key Laboratory of Traction Power Southwest Jiaotong University Chengdu 610031 China; 2. School of Electrical Engineering Southwest Jiaotong University Chengdu 610031 China
Abstract：An equivalent null-flux electrodynamic suspension (EDS) simulation system was proposed, and its working principle and structure were described. The electromagnetic force characteristics of the system were analyzed by finite element simulation and experiment. A 3-D finite element model of the system was established, and then the effects of the coil velocity, the vertical and transverse displacement of the magnet, and the coil pitch on system performance were analyzed. A laboratory prototype was developed and tested. The variation of levitation force under different working conditions was tested. Comparisons between simulation and experiment have verified the accuracy and reliability of the finite element model. In addition, the laboratory prototype can realize the levitation of the magnet, which can provide theoretical support for the application and design of the null-flux EDS in rail transit．
王一宇, 蔡尧, 宋旭亮, 李刚, 马光同. 零磁通式电动悬浮等效模拟系统的特性分析与实验[J]. 电工技术学报, 2021, 36(8): 1628-1635.
Wang Yiyu, Cai Yao, Song Xuliang, Li Gang, Ma Guangtong. Characteristic Analysis and Experiment of the Equivalent Simulation System for Null-Flux Electrodynamic Suspension. Transactions of China Electrotechnical Society, 2021, 36(8): 1628-1635.
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2021, Vol. 36 
