太原理工大学学报2019，Vol.50Issue(1)：29-35,7.DOI:10.16355/j.cnki.issn1007-9432tyut.2019.01.005
基于支路开断脆弱度及传输介数的脆弱线路辨识算法
An Identification Algorithm for Vulnerable Lines Based on Branch Removal Vulnerability and Transferring Betweenness
摘要
Abstract
In order to prevent large-scale cascading outages effectively, a method based on comprehensive indicators to identify vulnerable lines was proposed.First, the branch removal distribution factor was modified, and the influence of power flow transferring direction was considered, so the branch removal vulnerability was proposed to reflect the removal vulnerability of the branch.Then, in view of the shortage of traditional betweenness, it was improved by the definition of power transmission distribution factor, and the transferring betweenness was constructed to reflect the fluctuation vulnerability of the line.By combining them as a comprehensive index to identify vulnerable lines, TOPSIS was utilized to rank the vulnerability of the lines, so as to screen out the vulnerable lines from the grid.Finally, with the New England 39-node system, Monte Carlo random simulation method was used to attack the selected lines, and the power dispersion level was calculated to reflect the change of the system safety.Compared with the related literature, the vulnerability of the selected lines and the rationality of the identification results are proved.关键词
连锁故障/脆弱线路/支路开断脆弱度/传输介数Key words
cascading outages/vulnerable lines/branch removal vulnerability/transferring betweenness分类
信息技术与安全科学引用本文复制引用
任建文,董圣孝,薛英杰..基于支路开断脆弱度及传输介数的脆弱线路辨识算法[J].太原理工大学学报,2019,50(1):29-35,7.基金项目
国家自然科学基金资助项目(50837002) （50837002）
