A Cyber-Physical Modeling and Assessment Framework for Power Grid Infrastructures

Katherine R. Davis, Charles M. Davis, Saman A. Zonouz, Rakesh B. Bobba, Robin Berthier, Luis Garcia, Peter W. Sauer

Research output: Contribution to journalArticlepeer-review


The integration of cyber communications and control systems into the power grid infrastructure is widespread and has a profound impact on the operation, reliability, and efficiency of the grid. Cyber technologies allow for efficient management of the power system, but they may contain vulnerabilities that need to be managed. One important possible consequence is the introduction of cyber-induced or cyber-enabled disruptions of physical components. In this paper, we propose an online framework for assessing the operational reliability impacts due to threats to the cyber infrastructure. This framework is an important step toward addressing the critical challenge of understanding and analyzing complex cyber-physical systems at scale.

Original languageEnglish (US)
Article number7103368
Pages (from-to)2464-2475
Number of pages12
JournalIEEE Transactions on Smart Grid
Issue number5
StatePublished - Sep 1 2015


  • Attack trees
  • contingency analysis
  • cyber security
  • cyber-physical systems
  • cyber-physical topology
  • operational reliability

ASJC Scopus subject areas

  • General Computer Science


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