配置梯次电池储能系统的快速充电站经济性评估
发布时间:2018-05-10 05:02
本文选题:快速充电站 + 梯次电池 ; 参考:《储能科学与技术》2016年04期
【摘要】:由于电动汽车快速充电站大功率快速充电的特性会对电网的稳定造成冲击,因此考虑在电动车快速充电站中配置电池储能系统(BESS),对充电站负荷进行削峰填谷,从而减少充电站变压器配置容量、缓解大功率快速充电对电网的不利影响。考虑到目前我国大量退役动力电池亟待回收利用的现状,结合梯次利用电池储能系统,建立了基于电动汽车快速充电站整体成本与收益的经济性评估模型,以快速充电站年净收益最大为目标函数,采用改进的遗传算法对模型优化求解。结合算例对快速充电站不配置储能、配置常规电池储能和配置梯次电池储能等不同情况进行了经济性评估,并综合考虑经济性与储能削减负荷的效果,确定了梯次电池储能系统最优容量配置方案。
[Abstract]:Since the characteristics of high power and fast charging in the rapid charging station of electric vehicle will impact on the stability of the power grid, it is considered to install the battery energy storage system (BESS) in the rapid charging station of electric vehicle to cut the peak and fill the valley for the load of the charging station. Therefore, the configuration capacity of charging station transformer is reduced, and the adverse effect of high power fast charging on power grid is alleviated. Considering the current situation that a large number of decommissioned power batteries are in urgent need of recycling in our country, an economic evaluation model based on the whole cost and income of the rapid charging station of electric vehicles is established, combining with the echelon utilization battery energy storage system. Taking the maximum annual net income of the rapid charging station as the objective function, an improved genetic algorithm is used to solve the model optimization. Combined with an example, the economic evaluation is carried out for different situations, such as the rapid charging station is not equipped with energy storage, the conventional battery energy storage is configured and the ladder battery energy storage is configured, and the economy and the effect of reducing the load of energy storage are considered synthetically. The optimal capacity allocation scheme of the trapezoidal battery energy storage system is determined.
【作者单位】: 华北电力大学控制与计算机工程学院;中国电力科学研究院;
【基金】:国家高技术研究发展计划(863计划)(2014AA052004) 国家电网公司科学技术项目 国家自然科学基金项目(51577065)
【分类号】:TM73;U491.8
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