Attack estimation–based resilient control for cyber-physical power systems

Kunpeng Pan, Feisheng Yang, Zhaowen Feng, Quan Pan

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

This article is concerned with the resilient control problem for cyber-physical power systems. The main difference from the existing works lies in that the proposed resilient control scheme focuses on robust control in consideration of the attack reconstruction. First, power systems under false data injection attacks are modeled as cyber-physical power systems through the characteristics of power systems and attacks. Second, we design a robust adaptive attack estimation observer with a prescribed (Formula presented.) performance index to reconstruct the attack signals. Sufficient conditions for the design of the observer are formulated into matrix inequalities by choosing an appropriate adaptive law for online learning. Third, on the basis of attack estimation, a resilient control strategy by dynamic output feedback is proposed, which avoids the difficulty in designing state feedback resilient control based on the observer. Meanwhile, the attack estimation observer and output feedback resilient control are designed separately, and their performance is considered respectively, which simplifies the design process. Finally, a power system with three generators and six buses is used as an example to verify the feasibility of attack estimation and resilient control scheme.

Original languageEnglish
Pages (from-to)886-898
Number of pages13
JournalTransactions of the Institute of Measurement and Control
Volume45
Issue number5
DOIs
StatePublished - Mar 2023

Keywords

  • Cyber-physical power system
  • estimation observer
  • false data injection attack
  • resilient control

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