动车组牵引能耗测算研究

Measurement of EMU Traction Energy Consumption

在分析动车组能耗现状和现有文献的基础上,阐述了测算动车组能耗的经验公式法和受力分析法,选取特定线路利用两种方法对动车组能耗进行了比较研究,得出了特定线路条件下不同速度下经验公式的系数,测算出特定线路条件下的能耗。测算结果表明:动车组的行驶距离越长,用经验法计算得到的能耗误差越小;同样条件下,列车加速阶段能耗大于匀速阶段能耗,在同一运行阶段,列车合力能耗最大,基本阻力能耗次之,附加能耗最小。故列车在实际运行中,应尽量避免不必要的起停。

Based on an analysis of EMU energy consumption status and the existing literatures,the in this field,the empirical formula of EMU energy consumption and the stress analysis are expounded,coefficient of the empirical formula in different speeds for a certain line is obtained,and the energy consumption is calculated.The result shows that the longer driving distance of EMU,the smaller calculation error of energy consumption in he empirical formula will be.Since the train energy consumption at the acceleration stage is larger than that at the uniform stage,therefore,in practical operation,unnecessary train start and stop shall be avoided.