Evaluation Method and Index System of Fault Diagnosis in Digitalized Distribution Substation Area

Digitalized distribution substation area that constructed with intelligent transformer terminal could realize various advanced application scenarios by the use of IoT technology, which provides a new perspective for the fault diagnosis problem solving in power distribution system. This paper briefly introduces the principle of fault diagnosis based on digitalized substation area. Then propose a fault diagnosis effectiveness evaluation index system containing the first priority qualification index and the second priority performance index, and its index weight calculation method based on hierarchical analysis method and improved entropy weight method. And through the fuzzy comprehensive evaluation method, the comprehensive evaluation of the fault diagnosis effectiveness is carried out. At the end of this article, the effectiveness of the proposed evaluation method and index system is verified through example analysis.