Design of relative position sensing system for high-speed maglev train  

作　　者：钱存元 Han Zhengzhi Xie Weida Shao Derong 

机构地区：[1]Department of Automation, Shanghai Jiaotong University, Shanghai 200030, P.R. China [2]Railway ＆ Urban Mass Transit Research Institute, Tongii University, Shanghai 200331, P.R. China

出　　处：《High Technology Letters》2008年第1期18-23,共6页高技术通讯（英文版）

基　　金：the National High Technology Research and Development Program of China(No.2001AA505000,2004AA505240)

摘　　要：In the high-speed maglev system,accurate real-time information of the train position is essential forstable,safe and efficient train operation.To detect the relative position of the high-speed maglev trainfrom a reference position,a location method based on long stator slot detection was proposed.Besides,aprototype system has been successfully developed.The hardware structure of the system,as well as itsworking principle was described.Moreover,a subdivision algorithm for calculating the pole location anglesignal was elucidated.Experiments show that the proposed method is feasible.The technical indexes ofthe detection system satisfy the requirements of the vehicle operation control system.The relative positionsensing system can be put into practice.In the high-speed maglev system, accurate real-time information of the train position is essential for stable, safe and efficient train operation. To detect the relative position of the high-speed maglev train from a reference position, a location method based on long stator slot detection was proposed. Besides, a prototype system has been successfully developed. The hardware structure of the system, as well as its working principle was described. Moreover, a subdivision algorithm for calculating the pole location angle signal was elucidated. Experiments show that the proposed method is feasible. The technical indexes of the detection system satisfy the requirements of the vehicle operation control system. The relative position sensing system can be put into practice.

关 键 词：MAGLEV relative position linear synchronous motor SUBDIVISION 

分 类 号：U266.4[机械工程—车辆工程]