Journal
IEEE TRANSACTIONS ON FUZZY SYSTEMS
Volume 29, Issue 12, Pages 3812-3821Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TFUZZ.2020.3028657
Keywords
Actuators; Cyberattack; Adaptive systems; Fault tolerance; Fault tolerant systems; Control design; Adaptive fuzzy control; denial-of-service (DoS) attacks and actuator faults; event-triggered secure control; fault-tolerant and antiattack control method; stochastic nonlinear high-order multiagent systems (MASs)
Funding
- National Natural Science Foundation of China [61773097, U1813214]
- LiaoNing Revitalization Talents Program [XLYC1907035]
- Fundamental Research Funds for the Central Universities [N2004027]
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This article investigates the adaptive event-triggered secure control design problem for a class of stochastic nonlinear high-order multiagent systems subject to denial-of-service attacks and actuator faults. The proposed method effectively solves the problem of wasted communication resources by designing control signals with a relative threshold strategy, and can also address actuator faults and DoS attacks to achieve security control objectives in an insecure network and physical environment.
This article investigates the adaptive event-triggered secure control design problem for a class of stochastic nonlinear high-order multiagent systems (MASs) subject to denial-of-service (DoS) attacks and actuator faults. The considered systems contain not only unknown random interference terms but also general nonlinear functions that are not required to be globally Lipschitz, in contrast to most of the existing results in the area. To solve the problem of wasted communication resources, the control signal with the relative threshold strategy is designed via the event-triggered control technique. As a class of cyber-physical systems, the securities of MASs are vulnerable to actuator faults and DoS attacks. When the system suffers from coupled DoS attacks and actuator failures, its performance will deteriorate rapidly and even the controlled system will collapse. To overcome this difficulty, a novel fault-tolerant and antiattack control method is proposed, which enables the system to achieve the security control objective even in an insecure network and physical environment. The stability analysis of the system is given by combining the adaptive backstepping recursive design process with stochastic Lyapunov stability theory. It is demonstrated that all the signals of the closed-loop systems are semiglobally uniformly ultimately bounded in probability. Finally, a simulation example is given to illustrate the effectiveness and advantages of the presented scheme.
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