Comprehensive Evaluation of Equipment Failure Influence Degree before or after Accessing Distributed Power into Distribution Network

摘要

Distribution network equipment failure causes a serious impact on society. So a reasonable approach to reduce the consequences of equipment failure (ie, equipment failure affecting degrees) is necessary. This paper presents a comprehensive evaluation method which combines fault traversal, AHP-TOPSIS method to ensure the degree of different equipment failures. Meanwhile, in order to reduce the impact of equipment failure, a distributed power is accessed into distribution network, and we compared the impact value before and after it accessed. A numerical example shows that the distributed power can reduce the consequences of equipment failure as well as the grid and social impacts.