Feeder State Evaluation for Distribution Network Based on Set Pair Analysis

Most of the equipment evaluations of distribution network use the deduction method, and the evaluation object is for the single device. Namely, the overall risk of the distribution network equipment group is not considered. In this paper, feeder state evaluation for distribution network based on set pair analysis is proposed. First, a feeder evaluation index system is established based on multi-source data, and the system has four parts: power grid, equipment, environment, and users. Then the entropy weight method is used to calculate the weight of evaluation index. Finally, according to the different threshold characteristics of the indicators, different set pair analysis methods are used to evaluate the comprehensive state of the feeders. According to the actual data in a certain area, the feeder evaluation results are obtained, which can provide the guidance for daily operation and maintenance of the feeders.