Security control scheme for cyber-physical system with a complex network in physical layer against false data injection attacks

Younan Zhao, Peng Gu, Fanglai Zhu, Tianyi Liu and Runjie Shen

Applied Mathematics and Computation, 2023, vol. 447, issue C

Abstract: In this paper, based on finite-frequency domain H∞ control techniques, security control issues are investigated for a cyber-physical system (CPS) suffering from false data injection (FDI) attacks on sensors and actuators, where the real system in the physical layer is a complex network system. First, for each subsystem of the complex network system, an H∞ proportion integral (PI) observer is designed to estimate the system states and attack signals on the sensors and actuators simultaneously. Second, a state feedback controller with attack compensation is proposed using the estimates of the attack signals and the states. Thus, an observer-based security control strategy against FDI attack is set up and the stability analysis is accomplished by frequency domain H∞ control techniques. Finally, a simulation example is given to illustrate the better performance of the proposed methods compared with the traditional H∞ method.

Keywords: Cyber-physical system; Complex network system; False data injection attack; Security control; Finite-frequency domain (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:447:y:2023:i:c:s0096300323000772

DOI: 10.1016/j.amc.2023.127908

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