城市轨道交通信号系统灵活编组关键技术研究

Key Technologies of Flexible Marshalling in Signaling System for Urban Rail Transit

灵活编组技术包含物理联挂/解编技术及虚拟联挂/解编技术,重点对物理联挂/解编技术进行研究,提出信号系统解决方案。通过对运营需求分析,提出物理联挂/解编的功能实现目标及联挂/解编过程,结合互联互通CBTC系统特性,探讨联挂速度控制、与车辆接口、位置报告发送机制、联挂列车换端等关键技术的实现方法。通过灵活编组,在相同行车间隔条件下,可在同一线路不同时间、不同区域配置不同运能,高运量区域大编组高密度运行,在低运量区域小编组高密度运行,从而达到节能降耗和服务质量提升的效果。

The technologies for dynamic optimization function of metro fleet composition include physical coupling/decoupling technologies and virtual coupling/decoupling technologies.This paper focuses on the study on physical coupling/decoupling technologies,providing a relevant signaling system solution.Based on the analysis of the operation requirements,this paper presents the target of physical coupling and decoupling functions,and introduces the coupling and decoupling processes.Meanwhile,it also discusses the methods for realizing such key technologies as coupling speed control,train interface,location report transmission mechanism,and the switchover of the leading end of a newly coupled train,taking into consideration the CBTC features for interoperability.The dynamic optimization function of metro fl eet composition makes it possible to confi gure diff erent transportation capabilities on the same line for diff erent operation time schedules and sections under the same train operation headway condition,i.e.,the longer metro fl eets will be operated with a high density in the sections with more traffi c volume requirements,and the shorter metro fl eets will be operated with a low density in the sections with fewer traffi c volume requirements,so as to save power consumption and enhance service quality.