Secure Control of Wide-Area Power Systems: Confidentiality and Integrity Threats
Name
CDC_FinalSubmission2.pdf
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915.88 KB
Format
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Author(s)
Pirani, M.
Johansson, K. H.
Chakrabortty, A.
Dibaji, SeyedMehran
Annaswamy, Anuradha M
Date Issued
December 2018
Journal
57th IEEE Conference on Decision and Control
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Dibaji, S. M. et al. "Secure Control of Wide-Area Power Systems: Confidentiality and Integrity Threats." Forthcoming in: 57th IEEE Conference on Decision and Control, 17-19 December, 2018, Fort Lauderdale, Florida, IEEE, 2018.
Version
Author's final manuscript
Abstract
A cyber-physical model for wide-area control of power systems is considered, where the state variables of each generator are measured and sent to the cyber-network and the corresponding control inputs are computed distributively. The secure control of such wide-area power systems is considered in the presence of cyber attacks that introduce threats that compromise their integrity and confidentiality. Detection, prevention, and resilience for these attacks and algorithms for accomplishing these goals are proposed. In particular, an algorithm to overcome confidentiality attacks of the underlying control gains is presented. Also proposed is an algorithm for
defense against integrity attacks that might take place on the cyber-network. For this purpose, a resilient information retrieval approach is leveraged which recovers the true state variables despite the malicious attacks on both virtual machines and communication links. The retrieved states are then used to detect possible attacks on phasor measurement units (PMU) in the next time-step. Simulation studies are included to validate our proposed approaches.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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