城轨交通地面储能系统能量管理策略

Energy Management Strategy of Ground Energy Storage System of Urban Rail Transit

城轨交通地面储能系统兼顾备用电源和吸收列车再生制动能量的功能。首先介绍地面储能系统传统双环能量管理策略,基于此分别讨论了数种电池、超级电容优化控制策略,并提出了基于列车运行状态的城轨交通地面混合储能装置子系统间能量交互管理策略。该控制策略根据列车运行状态控制电池和超级电容进行能量交互,在保障储能系统寿命的前提下使混合储能系统尽可能多地吸收列车再生制动能量。

The ground energy storage system of urban rail transit takes into account the function of backup power supply and absorbing regenerative braking energy of trains.In this paper,firstly,the traditional double-loop energy management strategy was introduced.Based on this,several optimal control strategies of batteries and super-capacitors were discussed respectively.Then,an energy interaction management strategy between subsystems of the wayside hybrid energy storage device in urban rail transit was proposed based on the running state of trains.This strategy controlled the energy interaction between the battery and the super-capacitor according to the running state of the train,and made the hybrid energy storage system absorb as much regenerative braking energy as possible on the premise of ensuring the life of the energy storage system.