城市轨道交通列车自主运行系统后备模式研究

Research on Fallback Mode of Train Autonomous Control System of Urban Rail Transit

为提高城市轨道交通信号系统的可用性,确保信号系统局部故障情况下线路仍能够安全高效运营,考虑如何配置后备模式是一个重要课题。在深入研究下一代列控系统——列车自主运行系统(TACS)的架构、系统原理的基础上,对国内TACS系统配置的列车智能感知系统、列车自主定位系统、降级联锁系统等3种后备模式,分别进行分析:阐述其设备配置、工作原理、降级原因及运营场景;分析3种后备模式的优缺点,将各后备模式的配置情况与传统CBTC系统设备进行对比;阐述3种后备模式适用的运营场景,提出需综合考虑工程情况及运营需求,合理选择适合工程的TACS系统后备模式的建议,可为后续TACS线路的建设提供参考。

To improve the availability of urban rail transit signal systems and ensure the safe and efficient operation of the line in the event of local signal system failures,it is important to consider how to configure fallback modes.On the basis of in-depth study of the next generation train control system—the Train Autonomous Control System(TACS),the three main fallback modes configured by the domestic TACS are analyzed separately including train intelligent perception system,train autonomous positioning system and degraded interlocking system.The key factors such as the equipment configuration,working principles,degradation reasons and operational scenarios are expounded respectively.Then,the advantages and disadvantages of the three fallback modes are analyzed and the configuration of the fallback modes is compared with the traditional CBTC system equipment.Finally,the operational scenarios which are applicable to the three fallback modes are discussed,and it is suggested that by taking into account the engineering situation and operational requirements,the suitable TACS system fallback mode should be reasonably selected for the project,which can provide reference for the future construction of TACS line.