Decentralized dynamic event‐triggered control for networked control systems under unreliable communication network and actuator saturation

• Published in: Asian journal of control Vol. 25; no. 2; pp. 852 - 866
• Main Authors: Yang, Fan, Shen, Zhuan, Chen, Jing, Hu, Aihua, Zhang, Jingxiang, Hu, Manfeng
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc 01.03.2023
• Subjects: actuator saturation; Actuators; Control systems; Cybersecurity; decentralized dynamic event‐triggered scheme (DDETS); Energy consumption; Event triggered control; hybrid cyber attacks; multi‐channel fading; Network control; Parameter uncertainty; Perturbation
• ISSN: 1561-8625; 1934-6093
• DOI: 10.1002/asjc.2810

In this paper, the stochastic stability of networked control systems (NCSs) with nonlinear perturbation and parameter uncertainties is studied. A decentralized dynamic event triggering scheme (DDETS) is introduced to reduce energy consumption and network transmission burden. Each channel can decide whether to transmit signals sampled by corresponding sensors through this mechanism. Due to the unreliability of communication network, a new mathematical model of NCSs based on multi‐channel fading and hybrid cyber attacks is established, and the actuator is constrained by saturation. A sufficient condition for stochastic stability based on static controller is derived through Lyapunov stability theory, and two numerical examples are given to demonstrate the effectiveness of the method.