基于超高速真空管道交通系统运行能耗的研究

Analysis of Energy Consumption in the ETT System Based on Blockaging Ratio

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。

To in-depth analysis the problem of energy consumption under different parameters the Evacuated Tube Transportation system,using numerical simulation. The results obtained： When the system pressure is constants,as the train speed and the blocking ratio increase,the train traction energy consumption is parabolic growth trend,and maintaining the vacuum of energy decreases. As the train speed increases,the total operation energy consumption decreases first and then increases,the total operation energy consumption reaches the minimum value; and when the system blocking ratio increases,resulting in that the speed decreasing when the total energy consumption reaching minimum. And it will lead to construction costs. By comparing two kinds transportation ETT system and CRH 3 total energy consumption. When the train speed is 345 km / h,at standard atmospheric pressure environment CRH 3 total energy consumption equal to 5 times higher than ETT system total energy consumption,meaning the speed of the ETT system is greater than CRH 3 with the same energy consumption. So the ETT system has an advantage for high-speed and low- power.