城市轨道交通运行中的车钩力最优控制策略

Optimal Control Strategy of Coupler Force in Urban Rail Transit

通过建立多质点城市轨道交通仿真模型,以深圳地铁1号线为研究背景,将优化列车之间车钩力作为控制目标,在列车达到某一恒速运动和恒力启动加速运动2种工况下,分析车钩力与牵引力之间的关系,进而依据车钩力仿真结果,提出列车评价车钩力标准,得到列车合理控制策略。其间,采用2种模型并行试验、牵引力合理分组和数理统计的方法,得出试验结论。并基于列车计算以及仿真结果对比分析,验证仿真试验的合理真实性。试验结果表明:在满足地铁车辆运行标准前提下,列车在恒力启动加速以及恒速运行2种工况下,可验证最优控制策略并非列车牵引力平均分配控制策略,进而可得到列车最优控制方式。

Based on two kinds of operating conditions： constant speed motion and constant force start motion, the relationship between the coupler force and the traction force was analyzed by establishing a multi-particle urban rail transit simulation model in the background of the Shenzhen metro linel in order to optimize the coupling force between the trains. According to the simulation results of the coupler force, the standard of the evaluation of the coupler force was proposed and the reasonable control strategy of the train was obtained. In the meantime, two models of parallel experiments, rational traction force grouping and mathematical statistics were used to draw the experimental conclusion. Therefore, the validity of the simulation experiment was verified relying on train calculation and comparison of simulation results. Experimental results showed that under the precondition of satisfy the standard of metro vehicle running, starting and accelerating the train in the constant force and constant speed operation, the optimal control strategy was not train traction evenly distributed control strategy. Meanwhile, the train optimal control mode could be obtained.