基于“撞硬墙”和“撞软墙”相结合的高速铁路列控系统控车方法研究  

Train control method for high-speed railways combining“hit-hard-wall”and“hit-soft-wall”control modes

作　　者：李微 张守帅[2] LI Wei;ZHANG Shoushuai(Chengdu Institute of Rail Technology,Chengdu 610081,China;School of Transportation and Logistics,Southwest Jiaotong University,Chengdu 611756,China)

机构地区：[1]成都交通高级技工学校,四川成都610081 [2]西南交通大学交通运输与物流学院,四川成都611756

出　　处：《山东科学》2023年第5期85-92,共8页Shandong Science

基　　金：国家自然科学基金项目(52302417);四川省自然科学基金项目(2023NSFC0906)。

摘　　要：压缩列车追踪间隔可以显著提升行车密度,优化列控系统的控车方法是压缩追踪间隔的重要手段。目前常见的“撞硬墙”控车模式在效率上存在很大冗余,“撞软墙”控车模式又无法保证行车的绝对安全。因此提出“撞硬墙”和“撞软墙”相结合的控车模式,在保证列车绝对安全的前提下压缩列车追踪距离。给出了对该控车模式优化的基本原则,并针对该模式下前车速度无法获取、控车曲线无法满足约束的问题,探讨了基于轨道电路信息的列车速度估算方法和满足相关约束的控车曲线生成技术。以CRH380BL列车为例,编制求解程序获取了优化后的列控减速度建议取值,新控车模式下平直道上列车追踪距离可压缩3 035 m,区间追踪间隔时间可压缩31 s。这对提升高铁运营效率和线路通过能力有重要意义。The passing capacity of several busy high-speed railway lines in China is declining,and reducing train headway can considerably improve train density.However,optimizing the control method for train control systems is important to reduce the headway.On one hand,the commonly employed“hit-hard-wall”control mode has redundancies,rendering it inefficient.On the other hand,the“hit-soft-wall”control mode cannot ensure the absolute safety of train operation.Therefore,this paper proposes a combined“hit-hard-wall”and“hit-soft-wall”control mode,which reduces train tracking interval while ensuring the absolute safety of the train.Further,basic principles for optimizing this control mode are presented herein.In addition,solutions for problems such as the inability to determine the speed of the preceding train and to fulfill control curve constraints under this mode are explored.The solutions include track circuit information-based train speed estimation and control curve generation techniques that satisfy relevant constraints.Considering the CRH380BL train as an example,a solution was developed to obtain recommended values for train control deceleration.Consequently,the train tracking interval on straight tracks was reduced by 3035 meters,and the interval tracking time was reduced by 31 seconds through the proposed control mode.This is of great significance for improving the operational efficiency and passing capacity of high-speed railway lines.

关 键 词：高速铁路 列控系统 撞软墙 撞硬墙 控车曲线 减速度 

分 类 号：U283.1[交通运输工程—交通信息工程及控制]