Cascading failure modeling and robustness evaluation based on AC power flow

被引：0
作者：
Hu F. [1 ]
Chen L. [1 ]
Chen J. [1 ]
机构：
[1] School of Electrical Engineering and Automation, Jiangsu Normal University, Xuzhou
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2021年 / 49卷 / 18期
基金：
中国国家自然科学基金;
关键词：
AC power flow; Cascading failures; Complex network; Vulnerable transmission lines;
D O I：
10.19783/j.cnki.pspc.201509
中图分类号：
学科分类号：
摘要：
Cascading failures are one of the main causes of blackouts, and fragile lines play an extremely critical role in the evolution of cascading failures. To identify potential fragile lines in cascading failures, based on complex network theory and actual characteristics of power systems, taking line apparent power as line flow, an AC power flow cascading failure model is proposed. Four indicators of electrical in-degree electrical out-degree, and electrical betweenness centrality, as well as weighted power flow transfer entropy are proposed to identify vulnerable lines from the three aspects of network local, global and power flow functional characteristics. Finally, the robustness of the power grid are evaluated through 6 IEEE standard test systems. The results show that the deliberate attack strategy based on the electrical in-degree centrality index will cause the greatest damage to the grid after a cascading failure, and the robustness of the power grid will gradually increase as the network scale increases. © 2021 Power System Protection and Control Press.
引用
收藏
页码：35 / 43
页数：8
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