摘要
[目的]城市轨道交通线路的CBTC(基于通信的列车控制)系统在特定场景中具有一定的局限性:当一条进路存在多个保护区段时,联锁无法根据列车的前进方向灵活选择保护区段,难以满足灵活、自动建立进路的需求,需要优化保护区段触发策略。[方法]简要介绍了CBTC系统下进路触发及保护区段设置的基本原理,列举了既有保护区段控制方案下的2个典型问题场景。提出了保护区段触发策略优化方案,即由ATS(列车自动监控)自动选择保护区段方向并交由联锁执行。以场景一(列车跳停回库)为例,根据列车动力学特征,对优化前后的列车跳停性能进行了对比分析。[结果及结论]以列车跳停回库为场景案例的分析结果表明,优化保护区段控制策略后,列车跳停的时间性能大为提升。此优化方案具有可行性,可显著提高办理保护区段的灵活性,提升列车跳停的效率。
[Objective]The CBTC(communication-based train control)system on urban rail transit lines has certain limitations in specific scenarios:when there are multiple protection sections along a route,the interlocking system cannot flexibly select protection sections based on the train forward direction,causing inability to meet the requirements of flexible and automatic route arrangement establishment.Therefore,there is a need to optimize the protection section trigger strategy.[Method]The basic principles of route triggering and protection section setup in CBTC system are briefly introduced,highlighting two typical problem scenarios under existing protection section control schemes.An optimization scheme for the protection section trigger strategy is proposed,where ATS(automatic train supervision)automatically selects the protection section direction and delegates it to the interlocking system.Taking scenario I(train skip-stop and turn-back to depot)as example,according to train dynamics characteristics,the train skip-stop performance before and after optimization is compared and analyzed.[Result&Conclusion]The case analysis results of train skip-stop and turn-back to depot scenario show that after optimizing the protection section control strategy,the time performance of train skip-stop is greatly improved.The proposed optimization method is feasible and can significantly enhance the flexibility of protection section handling,improving the efficiency of train skip-stop.
作者
李洁
周光磊
王洪伟
LI Jie;ZHOU Guanglei;WANG Hongwei(Research Institute of Technical Innovation,Beijing Subway Operation Co.,Ltd.,100082,Beijing,China;Beijing Jiaoda Microunion Technology Co.,Ltd.,100043,Beijing,China;National Research Center of Railway Safety Assessment,Beijing Jiaotong University,100044,Beijing,China)
出处
《城市轨道交通研究》
北大核心
2024年第4期95-99,共5页
Urban Mass Transit
基金
国家自然科学基金重大项目(71942006)
中央高校基本科研项目(2021QY007)。
