本文从节能减排角度出发，研究节能方法策略，力求降低城市轨道交通能耗。基于传统潮流计算求解方法，建立了城市轨道交通牵引供电系统的等效电路模型，并考虑城轨车辆牵引能量的非线性特性及多车模型中的等效电路变化。结合合肥市轨道交通1号线相关数据分析，利用新型城轨牵引计算仿真模型进行多列车运行仿真模拟，并分析现有牵引供电系统与三种新型牵引供电系统（逆变回馈、储能、光伏）的牵引变电站能耗等。结果表明，相比于现有牵引供电系统，具有逆变回馈的牵引供电系统可以显著减小牵引变电所能耗，具有储能系统的牵引供电系统能够有效降低牵引变电所峰值功率，具有光伏系统的牵引供电系统可减小高达24.89%的牵引变电站能耗。

From the angle of energy-saving and emission-reduction, this paper studies energy-saving methods and strategies to reduce the energy consumption of urban rail transit. Based on the traditional method of power flow calculation, the equivalent circuit model of traction power supply system for urban rail transit is established. Combined with data analysis of Hefei rail transit line 1, a multi-train operation simulation was conducted using a new urban traction computing simulation model, the energy consumption of traction substation in the existing traction power supply system and three new traction power supply systems (inverter feedback, energy storage, photovoltaic) is analyzed. The results show that compared with the existing traction power supply system, the traction power supply system with inverter feedback can significantly reduce the energy consumption of traction substations, traction power supply system with energy storage system can effectively reduce the peak power of traction substation, traction power supply system with photovoltaic system can reduce up to 24.89% of the traction substation energy consumption.

U231

广东省自然科学基金