一种考虑列车运行图的高速铁路牵引供电系统再生能量评估方法

基于动车组的负荷特性和再生制动特性,定量分析牵引供电系统再生能量的传输规律;在建立牵引供电系统动态数学模型的基础上,通过初始化参数考虑列车运行图、辨识各个设备消耗的再生功率、计算再生能量消耗情况,提出高速铁路牵引供电系统再生能量的评估方法,并以某高速铁路区段实例进行验证。结果表明:提出的方法能定量评估牵引供电系统各类供电设备以及系统全线24h内的再生能量消耗情况,从而验证了动态数学模型和评估方法的有效性。

A Method for Evaluating Regenerative Energy of Traction Power Supply System of High Speed Railway Considering Train Working Diagram

Based on the load characteristics and regenerative braking characteristics of EMU,the transmission law of regenerative energy in traction power supply system(TPSS)was quantitatively analyzed.On the basis of establishing the dynamic mathematical model of TPSS,an evaluation method for the regenerative energy of high speed railway TPSS was proposed by initializing parameters,taking into account train working diagram,identifying the regenerative power consumed by each equipment and calculating the regenerative energy consumption.The method was verified by an example of a high speed railway section.Results show that the proposed method can quantitatively evaluate the regenerative energy consumption of all kinds of TPSS equipment and the whole line of the system within 24 hours.Thus both the dynamic mathematical model and evaluation method are verified to be effective.