Optimizing Capacity Configuration of Photovoltaic and Battery Energy Storage Systems in EV Charging Station based on Time-of-Use Pricing

2019 4th Asia Conference on Power and Electrical Engineering

能源学;电工学

Hai, Xiaotao^1 ; Yin, Lu^2 ; Jia, Zhuo^2 ; Yu, Qiang^1 ; Wang, Yu^2 ; Yao, Defei^2

State Grid Electric Vehicle Service Company, Ltd., Xicheng District, Beijing, China^1

Beijing Qingchuanghengxin New Energy Science and Technology Company, Ltd., Fangshan District, Beijing, China^2

关键词: Battery energy storage;    Battery energy storage systems;    Configuration model;    Economic efficiency;    Ev charging stations;    Photovoltaic systems;    Time-of-use pricing;    Utilization efficiency;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/486/1/012062/pdf
DOI  :  10.1088/1757-899X/486/1/012062

来源: IOP

【 摘 要 】

In order to improve the utilization efficiency of photovoltaic system (PV system) and battery energy storage system (BESS) in photovoltaic and battery energy storage integrated electric vehicle (EV) charging stations, the capacity of PV system and BESS need to be allocated reasonably. In this paper, the maximization of the net annual financial value is used as the objective function of photovoltaic and battery energy storage integrated EV charging station in its whole life cycle. The control strategy of BESS is proposed based on time-of-use pricing. And then the optimization configuration model of PV system and BESS capacity is built. The economic efficiency of EV charging stations is compared and analyzed with actual test system when PV system and BESS configurating. The results indicate that the income and investment payback period of charging stations can be significantly improved through the reasonable configuration of PV system and BESS.