西南交通大学学报2024，Vol.59Issue(5)：1006-1013,8.DOI:10.3969/j.issn.0258-2724.20210535
基于潮流相关性网络的电网脆弱线路识别
Identification of Vulnerable Lines in Power Grid Based on Power Flow Correlation Network
摘要
Abstract
Global blackouts have indicated that vulnerable lines in the power system would bring great operation risk and threaten system security.In view of this,the identification of vulnerable lines in the power system was carried out according to the transfer characteristics of the active power flows in the case of a two-stage cascading failure.First,from the perspective of system operation,the relationship between the lines was weighted in terms of the transferred active power flows when the power system had a two-stage cascading failure,and a bidirectional weighted power flow correlation network was constructed.Then,an improved E-index-based identification method for vulnerable lines was proposed to quantify line vulnerability in cascading failures.The results show that the average value at risk and the average conditional value at risk of the top eight vulnerable lines in the identified results are 3 453.73 MW and 187.82 MW respectively for the IEEE-39 bus system,which are much higher than those obtained from other methods.Meanwhile,the residual load rate of the system is only 43.4%after the static intentional attack,and the number of power islands in the system increases rapidly.关键词
脆弱线路识别/改进E指数/潮流相关性网络/隐性故障Key words
identification of vulnerable lines/improved E-index/power flow correlation network/hidden failures分类
信息技术与安全科学引用本文复制引用
范文礼,叶雨润,李全优,肖烨琦,熊力颖,何晓凤..基于潮流相关性网络的电网脆弱线路识别[J].西南交通大学学报,2024,59(5):1006-1013,8.基金项目
教育部人文社会科学研究青年基金项目(18YJCZH028,20XJCZH004) 成都市软科学研究项目(2020-RK00-00367-ZF)的部分资助. （18YJCZH028,20XJCZH004）
