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A Sequential Coordinated Attack Model for Cyber-Physical System Considering Cascading Failure and Load Redistribution

机译：考虑级联故障和负载重新分配的网络物理系统顺序协同攻击模型

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摘要

With the massive deployment of cyber technologies in smart grid, the power system becomes more vulnerable to malicious cyber-physical attacks. Therefore, it is of great significance to analyze the reliability risk of cyber-physical system under malicious attack. This paper proposes a sequential coordinated attack framework for the cyber-physical system. It comprises the physical attack on the lines and cyber-attack by load redistribution (LR). More specifically, the cascading failure is also incorporated in the physical attack model and a new LR attack is proposed to cooperate with the physical attack in this paper. Then a Q-learning based solution algorithm is proposed to identify the optimal coordinated attack scheme. Finally, case studies on IEEE-39 bus system demonstrate the effectiveness of the proposed algorithm and compare the effects of coordinated attack and cascading attack.
机译：随着智能电网中网络技术的大规模部署，电力系统变得更容易受到恶意的网络物理攻击。因此，分析网络物理系统在恶意攻击下的可靠性风险具有重要意义。本文提出了一种针对网络物理系统的顺序协同攻击框架。它包括负载重分布（LR）对线路的物理攻击和网络攻击。更具体地说，级联故障也被包含在物理攻击模型中，并且本文提出了一种新的LR攻击来与物理攻击配合。然后提出了一种基于Q学习的求解算法来确定最优的协同攻击方案。最后，在IEEE-39总线系统上的案例研究证明了该算法的有效性，并比较了协同攻击和级联攻击的效果。

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