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2020-04-24
Jianfeng, Dai, Jian, Qiu, Jing, Wu, Xuesong, Wang.  2019.  A Vulnerability Assessment Method of Cyber Physical Power System Considering Power-Grid Infrastructures Failure. 2019 IEEE Sustainable Power and Energy Conference (iSPEC). :1492—1496.
In order to protect power grid network, the security assessment techniques which include both cyber side and the physical side should be considered. In this paper, we present a method for evaluating the dynamic vulnerability of cyber-physical power system (CPPS) considering the power grid infrastructures failure. First, according to the functional characteristics of different components, the impact of a single component function failure on CPPS operation is analyzed and quantified, such as information components, communication components and power components; then, the dynamic vulnerability of multiple components synchronization function failure is calculated, and the full probability evaluation formula of CPPS operational dynamic vulnerability is built; Thirdly, from an attacker's perspective to identify the most hazardous component combinations for CPPS multi-node collaborative attack; Finally, a local CPPS model is established based on the IEEE-9 bus system to quantify its operational dynamic vulnerability, and the effectiveness of proposed method is verified.