摘要
基于既有研究大多局限于站站停列车运行条件下的地铁节能坡优化,为解决快慢车组合运行条件下市域快线节能坡优化问题,在对列车受力分析的基础上,提出快慢车组合运行下列车运行能耗表达函数,并构建以运行能耗最小和列车运行时间偏离最小为目标的节能坡优化模型,并基于改进的遗传算法设计快速求解算法。通过广州市域快线18号线验证,研究结果表明:本文所提模型与算法能够有效求解节能坡设计方案,相对于原始方案,优化方案在保持运行时间小幅变动的前提下,使列车牵引能耗降低了15.2%~25.2%。并发现快慢车的不同比例对节能坡设计方案和节能效果有影响,慢车比例越大,方案的节能效果越显著。
Most existing researches are limited to the optimization of energy saving slope of subway under the condition of stopping trains at each station.In order to solve the problem of energy saving slope optimization of urban rail transit express line of the sprinter and express combined operation trains,based on the stress analysis of the train,this paper proposed an energy consumption function of the sprinter and express combined operation trains and established the optimization model with the minimum operating energy consumption and the minimum deviation of the train running time.Then,according to the improved genetic algorithm,a solving algorithm was designed.Finally,the operation of Guangzhou express line 18 was applied as numerical examples to validate the performance of the proposed approach.Results show that the proposed approach can effectively solve the energy saving slope design problem.Compared with the original project,the optimization approach can reduce the energy consumption of train operation by 15.2%~25.2%while maintaining the small fluctuation of running time.This paper also finds that the different proportions of sprinter and express trains have effects on the energy-saving slope design scheme and energy saving effect.The greater the proportion of sprinter trains,the higher the energy-saving proportion of the total energy consumption is.
作者
曹金铭
李得伟
董欣垒
于婕
CAO Jinmin;LI Dewei;DONG Xinlei;YU Jie(School of Traffic and Transportation,Beijing Jiaotong University,Beijing 100044,China)
出处
《铁道科学与工程学报》
CAS
CSCD
北大核心
2020年第3期756-764,共9页
Journal of Railway Science and Engineering
基金
科技部重点研发计划资助项目(2018YFB1201402)。
关键词
市域快线
节能坡
遗传算法
快慢车组合运营
intercity railway
energy saving slope
genetic algorithm
combined operation of sprinter and express train
