电力系统保护与控制Issue(17)：32-38,7.
基于连锁故障序列分析的电网脆弱性评估
Vulnerability evaluation of power grid based on the analysis of cascading failure sequence
张海翔 1吕飞鹏1
作者信息
- 1. 四川大学电气信息学院，四川 成都 610065
- 折叠
摘要
Abstract
Critical segments in power system are closely related to cascading failure and provide important bases for dynamic monitoring and emergency control. In order to identify the critical segments, a novel method of vulnerability evaluation of power grid and cascading failure searching based on uncertain multiple attribute decision-making is proposed. Firstly, according to the relation between the branch and the protection relay on the branch, the initial fault event set is established and the decision matrix is formed in the real time by taking the various factors that trigger a chain of failures into account. By adopting the multi-attribute decision making based on information entropy, the initial fault events are sorted. By comparison with the threshold set, the proper initial fault event is screened;then the subsequent fault is searched based on the improved branch operational reliability model;finally, the fault sequence, node and the entire system are assessed by vulnerability function. The simulation results show the method has a good application prospect.关键词
电力系统/连锁故障/多属性决策/不确定性/脆弱性评估Key words
power system/cascading failure/multiple attribute decision/uncertainty/vulnerability evaluation分类
信息技术与安全科学引用本文复制引用
张海翔,吕飞鹏..基于连锁故障序列分析的电网脆弱性评估[J].电力系统保护与控制,2013,(17):32-38,7.
