Guaranteed cost control of hybrid-triggered networked systems with stochastic cyber-attacks. (September 2020)

• Record Type: Journal Article
• Authors: Wu, Jiancun; Peng, Chen; Zhang, Jin; Yang, Mingjin; Zhang, Bao-Lin
• Is Part Of: ISA transactions. Volume 104(2020)
• Page Start: 84
• Page End: 92
• Publication Date: 2020-09
• Subjects: Networked control systems -- Hybrid-triggered mechanism -- Cyber-attacks -- Guaranteed cost control; Engineering instruments -- Periodicals; Engineering instruments; Periodicals; Electronic journals; 629.805
• DOI: 10.1016/j.isatra.2019.04.017
• Languages: English
• ISSNs: 0019-0578

Abstract

Abstract: This paper is concerned with guaranteed cost control for a hybrid-triggered networked system subject to stochastic cyber-attacks. First, a hybrid-triggered mechanism including time-triggered mechanism and event-triggered mechanism is proposed to mitigate the pressure of network transmission, in which the switching between two mechanisms satisfies Bernoulli distribution. Second, the closed-loop system subject to the hybrid communication scheme and stochastic cyber-attacks is modelled as a stochastic system with an interval time-varying delay. Then, based on the Lyapunov–Krasovskii functional approach, two theorems are presented for guaranteeing the mean-square stability of the studied system. Finally, the effectiveness of the proposed method is demonstrated through a numerical example. Highlights: A hybrid-triggered mechanism is presented to mitigate the pressure of network transmission. Two stochastic variables are used to describe the switch process of two triggered schemes and the probability of cyber-attacks occurred. The feedback guaranteed cost controller gain and parameters of triggered can be co-design.