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采用数值模拟的方法对不同参数下真空管道交通(ETT)系统的运行能耗进行了深入分析,结果表明:当管内压力一定时,提高列车运行速度及系统阻塞比,列车牵引力能耗迅速增长,而维持系统真空度的能耗会降低。但随着列车运行速度的提高,ETT系统运行的总能耗先减小后增大,存在最小值,且随着系统阻塞比的增大,促使系统总运行能耗最小的列车运行速度减小;同时,阻塞比增大会降低真空管道系统建设成本降低。与动车组CRH 3总运行能耗相比,当列车运行速度为345km/h时,在标准大气压力环境下的CRH 3动车组总运行能耗相当于ETT系统总运行能耗的5倍左右,因此ETT系统更具有高速低耗的优越性。
The numerical simulation method is used to analyze the energy consumption of the ETT system under different parameters. The results show that when the pressure inside the pipe is constant, the train running speed and system blockage ratio increase rapidly, the tractive power consumption of the train increases rapidly, While maintaining the system vacuum will reduce the energy consumption. However, as the train speed increases, the total energy consumption of the ETT system decreases first and then increases, with the minimum value. With the increase of the system congestion ratio, the train running speed with the lowest total system running energy consumption is reduced At the same time, the increase of blocking ratio will reduce the cost of vacuum piping system construction. Compared with the total operation energy consumption of CRH 3 of EMU, when the train running speed is 345km / h, the total operating energy consumption of CRH 3 EMU under standard atmospheric pressure environment is about 5 times of the total energy consumption of ETT system, ETT system therefore has the advantages of high speed and low consumption.