基于改进灰色聚类的配电网应急可靠性综合评估方法

配电网应急可靠性水平是衡量其供电可靠性的重要指标之一,是构建坚强电网的重要组成部分。为准确反映配电网应急可靠性水平,提出基于改进灰色聚类方法的应急可靠性综合评估方法。分析配电网应急技术特点,采用层次分析法建立评估指标体系,并引入去量纲和信息熵理论确定指标值和权重,通过对常规白化权函数改进,建立基于改进灰色聚类评估法的评估模型,结合实际情况对配电网应急可靠性进行综合评估。最后,算例采用雷达图和SPSS软件对比分析证明了改进法具有较高的可靠性,并结合实际提出了相应的整改意见,对不同配电网的应急可靠性对比和竞争以及提升配电网自动化水平具有较好的指导意义。

Research on Comprehensive Assessment method of Emergency Reliability Evaluation of Distribution Network Based on reformative grey clustering

The emergency reliability of distribution network is one of the important indicators to measure the reliability of power supply, and also is an important part of strong power grid.To accurately reflect the level of the emergency re-liability, this paper introduces a comprehensive evaluation method based on reformative grey clustering method.The characteristics of distribution network repair technology are analyzed, using AHP to establish evaluation index system, and the dimensionless methods and information entropy theory are introduced to determine the index and weight. Based on the improvement of conventional whitening weight functions, an evaluation model based on reformative grey clustering evaluation method is established.Combined with the actual situation, the distribution network emergency reliability is analyzed comprehensively.Finally, the case shows that the reformative method has higher reliability through using radar chart and SPSS software, and puts forward some corresponding suggestions for improvement with actual conditions.It has directive significance for the comparison and competition of different distribution network e-mergency reliability, as well as the improvement of automation level of distribution network.