SCPSE

Security-oriented cyber-physical state estimation for power grid critical infrastructures

Saman Aliari Zonouz, Katherine M. Rogers, Robin Berthier, Rakesh B. Bobba, William H. Sanders, Thomas J. Overbye

Research output: Contribution to journalArticle

88 Citations (Scopus)

Abstract

Preserving the availability and integrity of the power grid critical infrastructures in the face of fast-spreading intrusions requires advances in detection techniques specialized for such large-scale cyber-physical systems. In this paper, we present a security-oriented cyber-physical state estimation (SCPSE) system, which, at each time instant, identifies the compromised set of hosts in the cyber network and the maliciously modified set of measurements obtained from power system sensors. SCPSE fuses uncertain information from different types of distributed sensors, such as power system meters and cyber-side intrusion detectors, to detect the malicious activities within the cyber-physical system. We implemented a working prototype of SCPSE and evaluated it using the IEEE 24-bus benchmark system. The experimental results show that SCPSE significantly improves on the scalability of traditional intrusion detection techniques by using information from both cyber and power sensors. Furthermore, SCPSE was able to detect all the attacks against the control network in our experiments.

Original languageEnglish (US)
Article number6376274
Pages (from-to)1790-1799
Number of pages10
JournalIEEE Transactions on Smart Grid
Volume3
Issue number4
DOIs
StatePublished - Dec 1 2012
Externally publishedYes

Fingerprint

Critical infrastructures
State estimation
Sensors
Intrusion detection
Electric fuses
Scalability
Availability
Detectors
Experiments

All Science Journal Classification (ASJC) codes

  • Computer Science(all)

Cite this

Aliari Zonouz, Saman ; Rogers, Katherine M. ; Berthier, Robin ; Bobba, Rakesh B. ; Sanders, William H. ; Overbye, Thomas J. / SCPSE : Security-oriented cyber-physical state estimation for power grid critical infrastructures. In: IEEE Transactions on Smart Grid. 2012 ; Vol. 3, No. 4. pp. 1790-1799.
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SCPSE : Security-oriented cyber-physical state estimation for power grid critical infrastructures. / Aliari Zonouz, Saman; Rogers, Katherine M.; Berthier, Robin; Bobba, Rakesh B.; Sanders, William H.; Overbye, Thomas J.

In: IEEE Transactions on Smart Grid, Vol. 3, No. 4, 6376274, 01.12.2012, p. 1790-1799.

Research output: Contribution to journalArticle

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