Journal of Lanzhou University of Technology ›› 2026, Vol. 52 ›› Issue (4): 72-83.doi: 10.13295/j.cnki.issn1673-5196.2026.04.009

• Automation Technique and Computer Technology • Previous Articles     Next Articles

Robust security control of networked systems with hybrid attacks and access constraints

ZHU Chao-qun1,2,3, ZU Wen-bo1   

  1. 1. School of Automation and Electrical Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
    2. Key Laboratory of Gansu Advanced Control for Industrial Processes, Lanzhou University of Technology, Lanzhou 730050, China;
    3. National Demonstration Center for Experimental Electrical and Control Engineering Education, Lanzhou University of Technology, Lanzhou 730050, China
  • Received:2024-06-06 Online:2026-08-28 Published:2026-09-03

Abstract: In this paper, the robust security control problem is investigated for networked control systems with hybrid cyber attacks and medium access constraints. Firstly, considering the pattern characteristics of hybrid cyber attacks and the stochastic communication mechanism of sensor access constraints, the networked systems are modeled as Markov jump systems with multiple modes. Secondly, sufficient conditions for the stochastic stability of the closed-loop systems are derived by utilizing Lyapunov stability theory and linear matrix inequality (LMI) techniques, and the robust security control strategy with the prescribed H performance is developed. Finally, an illustrative example is given to demonstrate the correctness and effectiveness of the proposed control method.

Key words: networked control systems, hybrid cyber attacks, medium access constraints, H robust control

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