Research on Searching of Fault Sequence and Defense Strategy in Power Grid Based on Game Reinforcement Learning

被引：0

作者：

Deng X. ^{[1
,2
]}

Wang W. ^{[1
]}

Liu S. ^{[3
]}

机构：

[1] School of Electric Power Engineering, Shanghai University of Electric Power, Yangpu District, Shanghai

[2] Key Laboratory of Control of Power Transmission and Conversion(Shanghai Jiao Tong University), Ministry of Education, Minhang District, Shanghai

[3] Key Laboratory of Power System Intelligent Dispatch and Control(Shandong University), Jinan

来源：

Dianwang Jishu/Power System Technology | 2021年 / 45卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Breaker failure; Cascading failures; Multi-stage dynamic zero-sum game; Q-learning algorithm;

D O I：

10.13335/j.1000-3673.pst.2021.0942

中图分类号：

学科分类号：

摘要：

In the process of obtaining the sequence of cascading failures, the influence of the branch trip scheduling strategy on power grid at each stage was not considered, which caused the problem that the prediction results of the trip sequence do not match the actual situation. This paper proposes a game theory calculation model that fully considers the interaction of branch trips and dispatching strategies to obtain the continuous trip sequence, which is used to obtain the trip sequence and optimal dispatching strategy. Taking the set of expected failures of circuit breaker failure as the initial conditions, the development process of cascading failures is described from the perspective of the attacker (grid fault) and the defender (dispatcher). From the perspective of the power grid attacker, the main consideration is the continuous outage of branch due to the transfer of power flow. From the perspective of dispatcher defense, action characteristics adaptive adjustment of zone III distance protection and sensitivity adjustment are taken as defense control strategies. In this way, a two-player multi-stage dynamic zero-sum game model is established. The Q-learning reinforcement learning is used to find the Nash composed of possible subsequent branch tripping instances equilibrium of the two-person game with the samples data composed of possible subsequent branch tripping instances under the condition of the initial circuit breaker failure in the power grid, the optimal cascading failure sequence of successive trips will get through this way, the optimal dispatching defense strategy is obtained, which can be applied to the online defense for the power grid. The simulation is taken on based on IEEE39 system, the results verify the correctness of the two-person multi-stage dynamic zero-sum game model used for scheduling online defense strategies in this paper. © 2021, Power System Technology Press. All right reserved.

引用

页码：4856 / 4867

页数：11

共 28 条

[1] SUN Guang, CHEN Jinfu, CHEN Zhiguang, Et al., N-k contingency risk analysis of power grid considering multi-mode hidden failure in relay protection system, Automation of Electric Power Systems, 38, 15, pp. 37-43, (2014)
[2] LI Lu, NIU Tianye, JIANG Guoqing, Et al., Analysis of an explosion accident of 500kV circuit breaker caused by insulation pull arm defect, Proceedings of the CSEE, 36, pp. 246-250, (2016)
[3] RAO Wei, WANG Fengyun, DING Jianyong, Family defect assessment of electric equipment based on improved hierarchical clustering method, Zhejiang Electric Power, 32, 3, pp. 9-13, (2013)
[4] WU Jiang, WANG Ning, CHEN Yibo, Et al., Familial defects analysis of equipment based on big data, China Science and Technology Information, 13, pp. 104-106, (2016)
[5] WU Xu, ZHANG Jianhua, QIU Wei, Et al., Vulnerability evaluation of district power grid based on N-k contingency, Proceedings of the CSEE, 32, 4, pp. 93-99, (2012)
[6] LIU Xingdong, SHAHIDEHPOUR M, LI Zuyi, Et al., Power system risk assessment in cyber attacks considering the role of protection system, IEEE Transactions on Smart Grid, 8, 2, pp. 572-580, (2017)
[7] CARRERAS B A, LYNCH V E, DOBSON I, Et al., Dynamics, criticality and self-organization in a model for blackouts in power transmission systems, Proceedings of the 35th Annual Hawaii International Conference on System Sciences, (2002)
[8] CARRERAS B A, NEWMAN D E, DOBSON I, Et al., Evidence for self-organized criticality in electric power system blackouts, Proceedings of the 34th Annual Hawaii International Conference on System Sciences, pp. 705-709, (2001)
[9] HOLME P., Edge overload breakdown in evolving networks, Physical Review E, 66, 3, (2002)
[10] MOTTER A E, LAI Y C., Cascade-based attacks on complex networks, Physical Review E, 66, 6, (2002)

← 1 2 3 →