文章针对城市轨道交通再生制动能量利用技术中的储能元件，对比了超级电容、钛酸锂电池及飞轮的工作原理、功率密度与能量密度等关键参数，对基于超级电容和钛酸锂电池组成的混合储能系统方案做了特性分析。仿真结果显示，由超级电容与钛酸锂电池组成的混合储能系统方案在回收再生制动能量、增强变电站供电能力、以及应对列车紧急牵引等场景中，与纯超级电容和纯电池储能系统方案对比具有显著优势，凸显了超级电容与钛酸锂电池混合储能系统在城市轨道交通再生能量利用技术中的潜力。

This paper focuses on the utilization of regenerative braking energy in urban rail transit, comparing key parameters such as working principles, power density, and energy density of supercapacitors, lithium titanate batteries, and flywheels. The paper analyzes the characteristics of a hybrid energy storage system composed of supercapacitors and lithium titanate batteries. Simulation results demonstrate that the hybrid energy storage system, combining supercapacitors and lithium titanate batteries, offers significant advantages over systems solely based on supercapacitors or batteries. These advantages are particularly evident in scenarios such as regenerative braking energy recovery, enhancing substation power supply capabilities, and supporting emergency traction of trains. The study highlights the potential of hybrid energy storage systems in optimizing the utilization of regenerative energy in urban rail transit.

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国家重点研发计划资助-2022YFB4301203