Power Grid Vulnerability to Geographically Correlated Failures - Analysis and Control Implications

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Provided by: Institute of Electrical & Electronic Engineers
Topic: Networking
Format: PDF
The authors consider line outages in the transmission network of the power grid, and specifically those caused by natural disasters or large-scale physical attacks. In such networks, an outage of a line may lead to overload on other lines, thereby leading to their outage. Such a cascade may have devastating effects not only on the power grid but also on the interconnected communication networks. They study a model of such failures and show that it differs from other models used to analyze cascades (e.g., epidemic/percolation-based models). Inspired by methods developed for network-survivability analysis, they show how to identify the most vulnerable locations in the network.
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