基于分区需求系数的电动汽车充电设施规划

电动汽车充电设施的合理规划对于电动汽车的推广具有重要作用。为此， 提出了一种基于分区充电需求系数的电动汽车充电设施选址定容方法。首先基于对各类电动汽车充电模式分析， 提出了电动汽车负荷预测模型。接着由各类电动汽车的日能量需求及日最大接入数量， 计算出各类电动汽车充电设施的需求数量。之后， 对所需研究的规划区域进行区块划分， 确定各区块的充电需求系数， 并选出充电需求较高的区块， 再根据所得到的候选布点区块及充电桩总数来确定每个区块的充电桩数量。最后， 以杭州市充电设施规划为例来说明所提方法的基本特征。

Planning of Charging Facilities of Electric Vehicles Based on Geographical Zonal Charging Demand Coefficients

Appropriate planning of charging facilities is of significant importance for the development of electric vehicles （EVs）. Given this background， a systematical approach for siting and sizing of EV charging facilities based on geographical zonal EV charging demand coefficients is proposed. A charging load prediction model is presented at first， based on the analysis of various charging modes. The demands for different charging facilities are subsequently calculated with the inputs of daily energy charging needs and the maximum plug-in numbers for all types of EVs. Then， the planning region is divided into different geographical zones， and the charging demand coefficient in each zone is determined. These zones with higher charging demand coefficients are selected as the candidates for installing charging facilities， and the demands for the charging facilities in these candidate zones are also determined. Finally， the planning scenario of EV charging facilities in Hangzhou is employed to illustrate the essential features of the developed method.