面向动态多列车运行场景的能耗计算方法

Energy Consumption Calculation Method for Dynamic Multi-Train Operation

研究一个运行间隔内同一供电区间中列车数量及运行方向的动态特性影响下的地铁多列车运行能耗计算问题,充分考虑再生制动利用和牵引电网电压对制动过程影响,结合再生制动与电阻制动投入的切换机理,提出一种将列车动力学模型与牵引供电模型相结合的多列车运行能耗计算模型,并给出一种基于高斯-赛德尔迭代法的模型求解算法,实现动态多列车运行场景下的能耗精准计算。基于上述研究思路搭建一个面向动态多列车运行场景的能耗仿真计算与分析平台,并利用成都地铁3号线线路数据进行仿真,仿真结果表明,该能耗计算方法能够对动态多列车的运行场景进行准确分析,并能从电能角度出发实现列车运行能耗的精准计算,能够对列车节能过程中的驾驶策略与运营安排起指导作用。

To study the calculation of the energy consumption of metro trains under the influence of dynamic characteristics of the number of trains and the running directions in the same power supply section at a given running interval,this essay presents an energy consumption calculation model for the metro trains,which combines the train dynamics model with the traction power supply model,based on comprehensive consideration of the influence of regenerative braking utilization and traction grid voltage on the braking process,and on switching mechanism between regenerative braking and resistance braking input.Therefore,a model solution algorithm is proposed based on the Gauss-Seidel method,and an accurate calculation of energy consumption in the dynamic metro train operation scenario is provided.Based on the aforementioned research approaches,a dynamic energy consumption simulation calculation and analysis platform for dynamic metro trains scenarios is established to stimulate the line data of Chengdu Metro Line 3.The simulation results show that the energy consumption calculation method plays a guiding role in driving strategy and operation arrangement in the train energy saving process as a result of its accurate analysis of dynamic multi-train operations and accurate calculation of energy consumption of train operation from the perspective of electric energy.