电动汽车快速充电网综合评估指标体系与方法

Comprehensive Evaluation Index System and Method for Fast Charging Network of Electric Vehicles

合理评估电动汽车快速充电网对其规划方案决策和运行薄弱环节改善有着重要意义,是促进电动汽车发展的重要环节之一。为此,构建了电动汽车快充网的综合评估体系。首先,结合快充网的多重属性,分析电动汽车快充网-用户-交通网-配电网之间的耦合交互关系,提出快充网运行水平、用户体验度、交通网运行影响度和配电网运行影响度四个准则,并在准则下构建相应的评价指标,形成了具有目标层、准则层和指标层的综合评估指标体系;其次,利用层次分析法和熵权法分别确定准则层和指标层权重,结合层次递推的模糊综合评价方法,量化快充网对各主体的影响并进行综合评估;最后,通过对某城市4种快充网进行综合评估,验证了所提方法的有效性。

It is important to evaluate fast charging network(FCN) of electric vehicle(EV) reasonably for planning decision and the improvement of FCN weaknesses, which is one of the important links to promote the development of EVs. Therefore, a comprehensive evaluation system of FCN of EVs is developed. First, based on the FCN multiple attributes and the coupling relationship of FCN, EV users, traffic network and distribution network, four criteria of FCN are proposed including the operation level, EV user’s experience, traffic operation impact and distribution network impact. Evaluation indices are also constructed to each criterion. Thus, the comprehensive evaluation index system including target layer, criterion layer and index layer is developed. Then, the analytic hierarchy process and entropy weight method are used to determine the index weight of criteria layer and index layer. Combined with recursive fuzzy comprehensive evaluation method, the impact of FCN on each part is quantified and evaluated comprehensively. Finally, four kinds of FCN in a city are evaluated comprehensively to validate the effectiveness of the proposed method.