实时电价条件下基于用户引导的电动汽车-充电桩匹配策略

随着电动汽车数量的快速增长,充放电需求也日益增加,但基础设施的增长速度却较为缓慢,车多桩少的现状带来了充电桩分配不合理的问题。据此,结合市场实时需求提出一种基于用户引导的电动汽车-充电桩匹配策略。首先,从聚合商的角度建立分配函数并给出可用充电桩的信息;其次,从用户的角度建立择优函数确定可选充电桩的范围;最后,在实时电价的条件下,通过更新补贴费用引导用户在待选范围内选择合适的充电桩充放电并有效参与市场平衡。仿真结果表明,在满足市场要求的前提下,该策略更好地兼顾了用户与聚合商的双向意愿,为充电桩的合理分配提供决策依据。

User Guidance Based Matching Strategy for Electric Vehicle-Charging Pile in Condition of Real-time Electricity Price

With the rapid increase of the amount of electric vehicles (EVs), the demand for battery charging and discharging is also increasing correspondingly, but the growth rate of infrastructure construction is still relatively slow. The current situation of more EVs than charging piles leads to the problem of unbalanced distribution of charging piles. Based on this problem and combined with the real-time demand of the market, a user guidance based matching strategy for EV-charging pile is proposed. Firstly, an allocation function is established from the view of energy aggregators and the information of available charging piles is generated. Secondly, an optimization function is established from the view of users to determine the geographical range of available charging piles. Finally, considering real-time electricity prices, EV users are encouraged to select appropriate charging piles for charging and discharging within the selected geographical range and effectively participate in power dispatch by updating subsidy fees. The simulation results show that on the premise of meeting market requirements, the matching strategy for EV-charging pile considers the two-way willingness of users and aggregators, and provides a decision basis for the rational distribution of charging piles.