摘要
研究目的:随着市域快线速度标准的不断提升,供电制式逐渐由直流供电过渡至交流供电,电分相作为交流供电中电气隔离的重要元件,其布设位置对行车影响尤为明显。本文结合既有研究成果及相关原理,分析不同工况下列车过分相需求,通过动态仿真,对不同坡度条件的分相布设情况展开深入研究,最终得出符合行车需求的电分相设置一般条件。研究结论:(1)正常运营、临时停车及故障救援三种工况下,救援工况是限制分相设置的瓶颈因素;(2)在车型参数一定时,随着救援时速的提升,分相设置条件得以提高,但设置坡度一般不超过6‰,最高不超过10‰;(3)困难条件下,通过提升车辆动拖比、降低车辆总重等途径可提升坡度上限,具体提升幅度应结合行车检算;(4)本研究成果可为新建市域快线电分相设置提供参考。
Research purposes:With the continuous increasing of the speed standard of urban rapid transit,the power supply modes gradually transit from DC to AC.Neutral section is an important element for electrical isolation in AC power supply modes,and its position has a significant impact on driving.This paper combines the existing research results and related principles,analyzes the requirements of train passing through neutral section under different operating conditions,and conducts research on the neutral section in different slope conditions by dynamic simulation.Finally,the regular pattern of neutral section setting that meet the driving needs are obtained.Research conclusions:(1)Under three working conditions that normal operation,temporary parking and breakdown rescue,rescue condition is the bottleneck factors that limit the neutral section setting;(2)With the fixed parameters of train,the conditions of neutral section setting will improve with the increase of rescue speed,but the slope won’t exceed 6‰generally and the highest is no more than 10‰;(3)The upper limit of the slope can be improved by increasing the train’s power or reducing the weight in difficult conditions,and the specific increase should be combined with driving simulation;(4)The research results can provide reference for the neutral section setting of the new urban rapid transit.
作者
石修路
SHI Xiulu(CREEC(Chongqing)Survey,Design and Research Co.Ltd,Chongqing 401120,China)
出处
《铁道工程学报》
EI
北大核心
2021年第4期79-82,96,共5页
Journal of Railway Engineering Society
基金
重庆市应用开发计划重点项目(cstc2014yykfB30003)
关键词
市域快线
分相布设
仿真计算
坡度条件
urban rapid transit
neutral section setting
simulation calculation
slope conditions
