Graph-theoretic algorithms for cyber-physical vulnerability analysis of power grid with incomplete information

Cyber-Physical Vulnerability Analysis

Electrical power systems consists of various components including physical components such as generator, transmission lines, buses, loads, transformers etc. and discrete components such as protection relays and other supervisory and control devices. Cyber failures in discrete components such as protection devices contribute towards cascading failures resulting in blackouts in electrical power t...

Cyber Physical Security for Power Grid Protection

Modeling and Vulnerability Analysis of Cyber-Physical Power Systems Considering Network Topology and Power Flow Properties

Conventional power systems are developing into cyber-physical power systems (CPPS) with wide applications of communication, computer and control technologies. However, multiple practical cases show that the failure of cyber layers is a major factor leading to blackouts. Therefore, it is necessary to discuss the cascading failure process considering cyber layer failures and analyze the vulnerabi...

Vulnerability Assessment of Power Grid Using Graph Topological Indices

This paper presents an assessment of the vulnerability of the power grid to blackout using graph topological indexes. Based on a FERC 715 report and the outage reports, the cascading faults of summer WSCC 1996 are reconstructed, and the graphical property of the grid is compared between two cases: when the blackout triggering lines are removed simulating the actual sequence of cascading outages...

Does topological information matter for power grid vulnerability?

Power grids, which are playing an important role in supporting the economy of a region as well as the life of its citizens, could be attacked by terrorists or enemies to damage the region. Depending on different levels of power grid information collected by the terrorists, their attack strategies might be different. This paper groups power grid information into four levels: no information, pure...