基于动态客流的城市轨道交通列车牵引能耗分析

摘要

The continuous growth of urban rail transit traffic has led to huge increase of energy consumption.In this background,it is of great significance to study the traction energy consumption of urban rail transit train from the dynamic passenger level to realize the sustainable development of urban rail transit.First,the authors establish a flow chart of traction energy consumption of urban rail transit train based on dynamic passenger flow.By analyzing the influence of dynamic passenger flow on traction energy consumption,the coupling mechanism of dynamic passenger flow and traction energy consumption is obtained.A section of a line of Guangzhou subway is taken as a case to carry out the calculation experiment system of urban rail transit operation.By using the Matlab software,polynomial fitting is used to fit the simulation experiment data of 570 groups with the dynamic passenger flow as x variable,traction time as y variable,and traction energy consumption as z variable.Besides,the sensitivity analysis of the dynamic passenger flow was carried out.The results show that the traction energy consumption of the train increases linearly with the increase of passenger flow.%城市轨道交通客运量的不断增长使得能源消耗越来越大,在此背景下,从动态客流层面研究城市轨道交通列车牵引能耗对实现城市轨道交通可持续发展具有重要意义.首先建立一个基于动态客流的城市轨道交通列车牵引能耗算法流程,通过研究动态客流对列车牵引能耗的影响,初步得到动态客流和列车牵引能耗的耦合机理.以广州地铁某线路区段为例,利用城轨列车运行计算模拟实验系统进行算例分析,以动态客流为x变量,牵引时分为y变量,牵引能耗为z变量,并利用Matlab对570组模拟实验数据进行多项式拟合,并对动态客流进行灵敏度分析.分析结果表明,列车牵引能耗随着客流的增大呈线性增长关系.