城市轨道交通全自动运行线路多专业速度控制与匹配设计研究

Research on Speed Control and Matching Design Among Multi Disciplines for Fully Automatic Operation Line of Urban Rail Transit

城市轨道交通多专业间的协调性是决定能否充分实现预期能力、发挥投资效益的关键环节,列车运行速度是其中一个重要方面,是城市轨道交通技术装备、技术标准、运营管理水平的重要标志。针对不同专业速度控制存在的重叠防护问题,通过剖析通信、信号、车辆、线路、环境等对全自动运行(FAO)线路列车运行速度的限制,提出列车自动运行(ATO)模式、列车自动防护(ATP)模式、蠕动模式和洗车模式4种典型运行模式下的速度匹配控制方案,讨论了根据线路等级速度拟定正线区间结构设计速度、车辆构造速度、车辆超速防护触发速度、车辆最大动态包络线计算速度、最高ATP顶篷速度、最高ATO目标速度的方法,并给出多专业匹配设计关键速度建议值。同时借助仿真手段,结合不同站间距设置与最短时间速度曲线计算,进一步针对速度等级为80,100 km/h以及120 km/h的线路分别讨论了站间距的匹配设计,建议三者站间距分别不少于1.0,1.4 km以及2.5 km。开展多专业速度控制与匹配设计的优化,有助于最大化发挥系统和设备性能,保证线路整体运营水平。

The matching between multiple disciplines of urban rail transit is a key link to determine whether the design ability can be fully realized and the investment benefit can be brought into play.And the train speed is one of the crucial aspects and an important symbol for technical equipment,technical standards and operation management level of urban rail transits.For the problem of overlapping protection on speed control,this paper,by analyzing the influences of communication,signal,vehicle,track,environment and other restrictions on the train speed of fully automatic operation(FAO)lines,puts forward a speed matching control scheme under different operation modes such as ATO(automatic train operation)mode,ATP(automatic train protection)mode,creep automatic mode and wash mode,discusses the method of determining the line structure design speed,vehicle construction speed,vehicle overspeed protection trigger speed,vehicle maximum dynamic envelope calculation speed,maximum ATP ceiling speed,and maximum ATO target speed according to the line grade speed,and defines the key speed recommendations of the matching design of multi disciplines.Meanwhile,by means of simulation and combined with the setting of different station spacing and the calculation of the minimum time speed curve,the design and selection principle of station spacing for lines with different speed grades(i.e.,80,100,and 120 km/h)is investigated,and it is recommended that the distance between the three stations be no less than 1.0,1.4 km and 2.5 km respectively.The optimization design of multi disciplines speed control and matching is helpful to maximize the performance of the system and equipment and ensure the overall operation level of the line.