城轨交通地面超级电容储能系统容量配置

Capacity Configuration of Ground Supercapacitor Energy Storage System for Urban Rail Transit

随着我国经济发展和城市化进程日新月异,城市轨道交通的开通运营里程也日益增长,城市轨道交通用电总量也越来越可观,列车牵引能耗是城市轨道交通用电比重最高的环节。使用能量回收装置或者使用双向变流装置替代现有的整流机组来回收列车再生制动能量,来降低城轨交通牵引能耗,已成为新建城市轨道交通线路的标准配置。当前主流应用的能量回收装置主要有储能型和中压能馈型两类,储能型能量回收装置又分为飞轮储能、电池储能和超级电容储能三种。本文对应用于城轨交通的超级电容型再生制动能量回收装置的容量配置进行了初步探讨,介绍了供电系统、列车、地面超级电容储能系统的分析建模及牵引供电计算仿真方法,研究了车辆条件、运营条件、线路因素以及邻站吸收装置等因素与设备容量配置的关系,并对无锡地铁1号线的实际应用数据进行了验证。

With the rapid development of China’s economy and urbanization,the mileage of urban rail transit is increasing day by day,and the total electricity consumption of urban rail transit is increasing.Train traction energy consumption is the highest proportion of electricity consumption of urban rail transit.It has become the standard configuration of newly-built urban rail transit lines to use energy recovery devices or bidirectional converter devices instead of existing rectifier units to recover the regenerative braking energy of trains and reduce the traction energy consumption of urban rail transit.Now,the mainstream energy recovery devices are mainly energy storage type and medium voltage energy feedback type,and the energy storage type energy recovery devices are divided into flywheel energy storage,battery energy storage and super capacitor energy storage.This paper preliminarily discusses the capacity configuration of the supercapacitor regenerative energy recovery device used in urban rail transit.The analysis and modeling of power supply system,train,and supercapacitor energy storage system and the calculation and simulation method of traction power supply are introduced.And it is verified with the actual application data of Wuxi Metro.