摘要
为了避免RAMS指标对CBTC系统性能评价的片面性,提出一种结合PRAC和SRAC结合的评价方法。首先,构建列车运行的追踪模型,得出列车在不同实现等级下的安全追踪距离;再分析轨道状态实现等级和列车实现等级之间的相互作用,以确认发生故障时系统内部各个结构的动态变化;最后,设计仿真训练和模拟实验对方法进行验证,PRAC+SRAC方法和对比方法解决故障的时长分别是1300 s,1600 s,1650 s和2500 s,采用该方法对CBTC进行评估能够更好判断故障发生的具体情况,目前,该方法已应用于北京市某轨道交通线路中,缩短了工作人员在列车故障发生后做出正确决策的反应时间。
In order to avoid the one-sidedness of RAMS index in evaluating the performance of CBTC system,an evaluation method combining PRAC and SRAC is proposed. First,the tracking model of train operation is constructed,and the safe tracking distance of the train under different implementation levels is obtained. The interaction between the track state realization level and the train realization level is then analyzed to confirm the dynamic changes of various structures within the system when a fault occurs. Finally,simulation training and simulation experiments are designed to verify the method. The PRAC+SRAC method and the comparison method take 1300 s,1600 s,1650 s and2500 s to solve the fault respectively. Using this method to evaluate CBTC can better judge the fault. At present,the method has been applied to a rail transit line in Beijing,which shortens the reaction time for staff to make correct decisions after a train failure occurs.
作者
张娜
ZHANG Na(China Railway First Survey and Design Institute Group Co.,Ltd.,Xi'an 710043,China)
出处
《自动化与仪表》
2023年第1期109-113,共5页
Automation & Instrumentation
作者简介
张娜(1986-),女,本科,工程师,研究方向为城市轨道通信系统、车地无线通信。
