电力系统保护与控制2015，Vol.43Issue(14)：30-34,5.
基于环网方向保护协调配合的最小断点集选取方法
Selection of minimum break point set based on coordination of directional protections in loop grid
摘要
Abstract
To obtain the reasonable starting points for setting directional protections in loop grid, the method for selecting minimum break point set is studied based on the coordination performance of protections. According to the step principle for setting protection relay, the measurement index is defined to evaluate the coordination performance of directional protections of transmission lines in loop grid, and the effectiveness of each feasible solution of minimum break point set problem can be described by its measurement index value, and the feasible solution with the best measurement index can be further selected as the minimum break point set. Based on the concept of the longest path in graph theory, the method for calculating measurement index is also given. Simulation results show that the proposed method can avoid the inappropriate coordination of protections caused by the unreasonable selection of minimum break point set.关键词
最小断点集/方向保护/协调配合/测度指标/环网Key words
minimum break point set/directional protection/coordination performance/measurement index/loop grid分类
信息技术与安全科学引用本文复制引用
杨文辉,范生海,周晓霞..基于环网方向保护协调配合的最小断点集选取方法[J].电力系统保护与控制,2015,43(14):30-34,5.基金项目
三峡大学科研启动基金项目(KJ2012B052) （KJ2012B052）
