基于线路限速的高速列车运行能耗分析

Operating Energy Consumption Analysis of High-Speed Train Based on Line Speed Limit

高速列车在不同线路限速运行时会产生不同的运行时间和能耗。通过分析高速列车能量流程和转化,给出列车运行分项能耗构成和计算方法,对250km/h和350km/h速度等级高速列车在不同线路限速时的运行分项能耗进行计算和分析,结果表明:站间距越长,线路限速越高,速度等级越高的列车节时优势越明显。250km/h线路限速时,高速列车运行阻力能耗占总能耗的60%以上;对限速线路,合理的高速列车速度等级选择可降低列车线路运行能耗。

High-speed train will produce difference running time and energy consumption when running at different line speed limit.By analyzing the energy flow and transformation,this paper presents the composition and calculation method of energy consumption of high-speed train.Based on the method,the energy consumption of 250km/h and 350km/h speed class high-speed train in different line speed limits is calculated and analyzed.The results show that longer distance between station and higher speed limit in rail line will cause obvious time advantage with higher speed class.The energy consumption of running resistance of high-speed train accounts for more than 60% of the total energy consumption in the 250km/h line speed limit.Reasonable speed class selection of high-speed train can reduce the operating energy consumption for a speed limit rail line.