基于分段优化的高速磁浮辅助停车区位置设置方法研究

Assistant Stop Area Configuration Method for High-speed Maglev System Based on Segmented Optimization

辅助停车区(ASA)位置的设置是高速磁浮交通的关键技术之一,涉及到安全悬浮曲线、安全制动曲线、线路结构等相关因素。在分析停车点步进控制过程的基础上,以道岔等线路结构对ASA设置的要求以及列车实际运行过程为约束条件,研究高速磁浮ASA位置的分段优化设置方法。该方法根据列车不同运行阶段,将磁浮线路分为不同区段,分别采用基于加速度的ASA计算方法和基于位置平均的ASA计算方法,给出相应的求解方法。计算结果表明,建立的ASA设置方法能够满足高速磁浮列车运行的需要。

In high-speed maglev system,the position of Assistant Stop Area(ASA),which depends on the safety suspension curve,safety braking curve and line infrastructure,is one of the key problems of the high-speed maglev system.In this paper,based on the analysis of the stepping control process at stopping points,with the requirements of switches and other line structures on ASA layout and the actual running process of maglev trains as the constraint conditions,a method of setting ASA position of high-speed maglev system based on segmental optimization was proposed.In this method,the maglev line was divided into different sections according to the train position in different running stages.Then the ASA calculation methods in different sections were established based on acceleration and average locations,and corresponding solution methods were illustrated.The results show that the ASA setting method can meet the operational requirements of high-speed maglev train,which provides a theoretical foundation for the practical application of high-speed maglev system.