配电网中储能系统的多维价值评估及应用

Multi-dimensional value assessment and application of energy storage system in dis⁃tribution networks

针对储能系统传统价值评估指标较为单一的问题,提出一种配电网储能系统多维价值评估方法。考虑到储能系统不同应用及复合价值,从经济性、可靠性和环保性三个维度出发,进行多维指标预选和计算;计及指标的变异特性和协同耦合度,对预选指标进行冗余筛选,精简指标体系;采用基于直觉模糊理论的变权层次分析法确定综合权重系数,定义储能系统的综合评价值。以Garver 6节点测试系统为例,采用所提评估方法对不同方案组进行排序并评选出最优配置方案,结果验证了该方法的合理性和有效性。

Given the traditional single-value assessment index for the energy storage system,a multi-dimensional value assessment method for the energy storage system of distribution networks is proposed.With different applica⁃tions and composite values of the energy storage system taken into account,the multi-dimensional indexes are pre-selected and calculated in terms of economy,reliability,and environmental protection.Given the indexes′variabil⁃ity characteristics and synergistic coupling degree,the pre-selected indexes are redundantly screened,and the in⁃dex system is streamlined.The variable weight hierarchical analysis method based on intuitionistic fuzzy theory is used to determine the comprehensive weight coefficients and define the total assessed value of the energy storage sys⁃tem.The Garver 6-node test system is taken as an example:the proposed assessment method is used to sequence the different scheme groups and select the optimal configuration scheme.The results verify the rationality and effective⁃ness of the method.