Defense strategy against large power grid cascading failure based on coordinated preventive-emergency control

被引：0

作者：

Jiang S. ^{[1
]}

Yang J. ^{[1
]}

Wang J. ^{[2
]}

Yuan W. ^{[2
]}

Xie P. ^{[2
]}

Luo C. ^{[1
]}

Sun Y. ^{[1
]}

机构：

[1] School of Electrical Engineering and Automation, Wuhan University, Wuhan

[2] State Grid Hunan Electric Power Company, Changsha

来源：

Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2019年 / 39卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Cascading failure; Coordinated control; Emer-gency control; Large power grid; Overload-dominated cascading failure; Preventive control;

D O I：

10.16081/j.epae.201910009

中图分类号：

学科分类号：

摘要：

With the increasing complexity of power grid structure and operation mode, the probability of large-scale blackout caused by source fault increases. Based on the analysis of the propagation mechanism and time characteristics of overload-dominated cascading failure, and taking into account the dispatcher's acceptability to the cascading failure consequences, a defense strategy against large power grid cascading failure based on coordinated preventive-emergency control is established. The coordination factor is introduced to decompose the control pressure into the periods before and after cascading failures. The initial ope-ration state of the system is optimized by preventive control, and the emergency control is combined with necessary means of generator tripping and load cutting on the basis of considering the dispatch potential of generators, so that the cascading failure spread is suppressed. The analysis results of IEEE 39-bus system demonstrate that the proposed coordinated control model can take full advantage of the complementary characteristics of preventive control and emergency control and take into account the tolerance consequence constraint and economic requirements, so as to defend cascading failures in the whole process. © 2019, Electric Power Automation Equipment Press. All right reserved.

引用

页码：148 / 154

页数：6

共 20 条

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