Cyber risks of PMU networks with observation errors: Assessment and mitigation

Weiyong Ding, Maochao Xu, Yu Huang and Peng Zhao

Reliability Engineering and System Safety, 2020, vol. 198, issue C

Abstract: The PMU network has been utilized to monitor the system operation of a smart grid in recent decades. This brings a significant cyber risk for the power grid as the attacker can manipulate the PMU network to introduce the false positive and false negative observation errors. A novel risk model is proposed for the PMU networks by considering the observation errors. It is discovered that ignoring the due observation errors can severely underestimate the PMU risks as shown by the theoretical and simulation studies. The risk mitigation strategies for improving the safety levels of PMUs with the observation errors are studied. It is found that the optimal mitigation strategy can be different when the observation errors are present. Numerical examples are presented for illustrations as well.

Keywords: Cyber threat; False positive; False negative; Observability; Propagation; Risk assessment (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:198:y:2020:i:c:s0951832019309494

DOI: 10.1016/j.ress.2020.106873

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