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<p>This paper investigates the static output feedback <i>H</i><sub>2</sub>/<i>H</i><sub>∞</sub> fault-tolerant control for nonlinear networked control systems (NCSs) under hybrid cyber attacks and hybrid-triggered mechanisms. Hybrid cyber attacks, comprising periodic denial of service (DoS) and deception attacks, are modeled via two Bernoulli random variables. Meanwhile, hybrid-triggered mechanisms are composed of time-triggered and event-triggered mechanisms, described by a switching law. A novel NCS model is proposed, incorporating hybrid cyber attacks, hybrid-triggered mechanisms, Round-Robin (RR) protocols, and actuator faults. Stability conditions for the closed-loop system are derived using period-dependent Lyapunov functions. The output feedback controller with nonlinear feedback is designed to satisfy hybrid performance indices. Subsequently, the cone complementarity linearization (CCL) algorithm is proposed to tackle the controller design problem. Eventually, the validity of the proposed control strategy is demonstrated via a CSTR simulation example.</p>

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Static Output Feedback H2/H∞ Fault-tolerant Control for Nonlinear Networked Systems Under Hybrid Cyber Attacks and Hybrid-triggered Mechanisms

  • 期刊论文

  • 发表日期：

    2025年6月11日

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  • Yunjiao Zhu,
  • Xiaoming Tang,
  • Dugang Kang,
  • Lei Zhang,
  • Minghong She,
  • Cheng Tan

摘要

This paper investigates the static output feedback H2/H∞ fault-tolerant control for nonlinear networked control systems (NCSs) under hybrid cyber attacks and hybrid-triggered mechanisms. Hybrid cyber attacks, comprising periodic denial of service (DoS) and deception attacks, are modeled via two Bernoulli random variables. Meanwhile, hybrid-triggered mechanisms are composed of time-triggered and event-triggered mechanisms, described by a switching law. A novel NCS model is proposed, incorporating hybrid cyber attacks, hybrid-triggered mechanisms, Round-Robin (RR) protocols, and actuator faults. Stability conditions for the closed-loop system are derived using period-dependent Lyapunov functions. The output feedback controller with nonlinear feedback is designed to satisfy hybrid performance indices. Subsequently, the cone complementarity linearization (CCL) algorithm is proposed to tackle the controller design problem. Eventually, the validity of the proposed control strategy is demonstrated via a CSTR simulation example.