电力交通融合的充电桩选址规划策略

Charging Pile Site Setection Planning Strategy for Power Traffic Integration

电动汽车大量接入及充电的随机性给配电网运行负载、运行电压质量带来重大影响,现有的研究多从充电桩收益角度进行充电桩规划,忽略了电动汽车充电负荷的交通属性,未考虑电力与交通协调的充电桩选址规划。针对此问题,基于电动汽车(Electric Vehicle,EV)充电特性与电力交通融合模型构建,提出了一种基于电压质量优化的充电桩选址规划方法,以线路平均电压最高为目标,考虑电网运行约束和充电桩规划容量约束,通过改进的粒子群算法进行模型求解,以解决电动汽车充电桩无序接入引起的电压质量问题。运用某小型馈线模型,进行了方法的仿真对比,结果表明,所提方法以线路平均电压最大为目标进行充电桩的选址规划,在满足充电负荷的同时,较好地提升了馈线平均电压,可为城市充电桩的选址规划提供重要的参考价值。

The stochastic nature of electric vehicle mass access and charging brings significant impact on distribution network operation load and operation voltage quality,and the existing research mostly carries out charging pile planning from the perspective of charging pile revenue,ignores the traffic attributes of electric vehicle charging load,and fails to consider the charging pile siting planning of electric power and traffic co-ordination.To address this problem,a charging pile siting planning method is proposed based on voltage quality optimization based on the charging characteristics of electric vehicle(EV) and the construction of power traffic integration model,taking the highest average line voltage as the target,considering the grid operation constraints and charging pile planning capacity constraints,and solving the model through improved particle swarm algorithm to solve the problem caused by uncontrolled access of EV charging piles.The voltage quality problem caused by disorderly access of charging piles.Using a small feeder model,the simulation comparison method is carried out,and the results show that the method proposed takes the maximum average line voltage as the target for charging pile siting planning,and improves the average voltage of the feeder better while meeting the charging load,which can provide an important reference value for the urban charging pile siting planning.