【摘要】 城市轨道交通具有站间距离短、行车密度高等特点，列车在运营过程中会频繁地启动和制动，产生可观的制动能量。本文针对制动能量的再生利用效率提升问题，提出了一种基于超级电容储能装置和全线规划布置的超级电容地面储能系统，对其系统节能能力、牵引网稳压能力进行研究。首先，针对超级电容储能装置从单体级、模组级到系统级进行了设计；接着，以实际线路为例，从变电所输出功率、直流侧电压以及系统运营总能耗3个方面在MATLAB/Simulink平台上进行节能仿真。仿真结果表明，超级电容地面储能系统能够有效地降低城市轨道交通系统运营能耗，节能率可达12.78%，同时稳压效果明显，电压波动幅度由290 V减小至190 V，提升了牵引供电系统的供电安全性。更多还原

【Abstract】 Urban rail transit has the characteristics of short distance between stations and high traveling density, which makes the train start and brake frequently during operation and generates considerable regenerative braking energy. In this paper, a super capacitor ground energy storage system based on super capacitor energy storage device and full-line planning arrangement is proposed for the regenerative use efficiency improvement of braking energy, and its system energy saving capability and traction network voltage stabilization capability are studied. Firstly, the super capacitor energy storage device is designed from single unit level, module level to system level; then, taking the actual line as an example, an energy-saving simulation is conducted on MATLAB/Simulink platform in three aspects: substation output power,DC-side voltage, and total energy consumption for system operation. The simulation results show that the super capacitor ground energy storage system can effectively reduce the energy consumption of urban rail transit system with energy saving rate up to 12.78%, while the voltage stabilization effect is obvious, the voltage fluctuation amplitude is reduced from 290 V to 190 V, and the power supply safety of traction power supply system is improved.更多还原