列车牵引节能技术研究

Research on energy saving technology of train traction

城市轨道交通因其单位运行能耗低、运营效率高、车体容量大、乘坐安全系数高、行车密度大、快速准时等优势在国内公共交通领域得到快速发展。经过测算对比,在同等运力条件下,城市轨道交通人公里能耗相当于公共汽车的1/3、小汽车的1/9,因此城市轨道交通是当前最为节能的绿色交通工具。但随着运营里程的快速增长、建设规模的不断扩大,其总量能耗仍然巨大且不断攀升,其中牵引能耗的成本支出占总能耗支出的40%以上,节能潜力巨大。文章以郑州市轨道交通1号线为例,采用灰狼算法,对单车节能控制策略进行优化设计,优化列车运行曲线,并对优化后产生的列车牵引节能效果进行分析,为城市轨道交通降低列车牵引能耗相关工作的开展提供借鉴和参考。

Urban rail transit has been developing rapidly in China because of its low energy consumption,high efficiency,large capacity,high safety coefficient,high traffic density and fast and punctuality.Based on the calculation,under the same capacity,the energy consumption of transit is about 1/3 of the bus and 1/9 of the car.Therefore,transit is one of the most energy-saving green transport modes.However,with the rapid growth of commercial operational mileage and the continuous expansion of network,the total energy consumption is still huge and rising rapidly.Among which,the cost expenditure of traction energy consumption accounts for more than 40% of the total expenditure of network operation,and the potential for energy conservation is huge.This paper studies the design of energy saving control strategy for single vehicle,adopts Gray Wolf algorithm,takes Zhengzhou rail transit line 1 as an example,optimizes the train operation curve,and analyzes the actual energy saving effect of train traction and the infl uence on passenger service after optimization,providing reference for the development of transit to reduce the traction energy consumption.