ARCADES: Analysis of Risk from Cyber Attack against DEfensive Strategies for Power Grid
In this paper, we introduce ARCADES, a technique to systematically explore the cybersecurity defense strategies based on contingency rankings in power systems. While cybersecurity defensive standards exist, these approaches are primarily based on expert opinions, rather than systematic studies of risk. ARCADES presents an approach to identify improved cybersecurity defensive strategies based on a graph-based cyber-physical security model that is evaluated by resistance-distance metrics and then prioritized based on contingency analysis studies of the system. This paper also proposed a technique that identifies the most critical cybersecurity mechanisms to protect the power grid. Planning and operation: those two applications for cyber security on power grid mainly explored in this paper. For planning, a systematic method is developed to verify the effectiveness of security strategies and for operation, prioritized the security mechanism for auditing and monitoring purpose. As a case study, we analyze the IEEE-14 bus, IEEE-30 bus and IEEE-118 bus system, observe the defensive strategies, and calculate substation criticality ranking by using our proposed method.
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