Premium
Event‐triggered output feedback H ∞ control for networked control systems
Author(s) -
Shen Yanjun,
Li Fengjiao,
Zhang Daoyuan,
Wang YanWu,
Liu Yungang
Publication year - 2018
Publication title -
international journal of robust and nonlinear control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.361
H-Index - 106
eISSN - 1099-1239
pISSN - 1049-8923
DOI - 10.1002/rnc.4380
Subject(s) - control theory (sociology) , controller (irrigation) , networked control system , interval (graph theory) , signal (programming language) , computer science , discrete time and continuous time , control (management) , scheme (mathematics) , control system , output feedback , time domain , control engineering , engineering , mathematics , mathematical analysis , statistics , electrical engineering , combinatorics , artificial intelligence , agronomy , biology , programming language , computer vision
Summary This paper investigates event‐triggered output feedback H ∞ control for a networked control system. Transmitted through a network under an event‐triggered scheme, the sample outputs of the plant are used to drive the dynamical output feedback controller to generate a new control signal in the discrete‐time domain. The discrete‐time control signals are also transmitted through the network to drive the plant. As a result of two types of transmission delays, the controlled plant and the dynamical output feedback controller are driven by the discrete‐time outputs and control signals at different instants of time. An interval decomposition method is introduced to place the controlled plant and the output feedback controller into the same updated time interval but with updated signals at different instants. Based on a proper Lyapunov‐Krasovskii functional, sufficient conditions are derived to ensure H ∞ performance for the controlled plant. Finally, numerical simulations are used to demonstrate the practical utility of the proposed method.