Dynamic output feedback H∞ control for continuous-time networked control systems

• Published in: IET control theory & applications Vol. 7; no. 7; pp. 1005 - 1013
• Main Authors: Wang, Tian-Bao, Wu, Cheng-Dong, Wang, Yu-Long, Zhang, Yun-Zhou
• Format: Journal Article
• Language: English
• Published: The Institution of Engineering and Technology 01.05.2013
• Subjects: actuators; continuous time systems; continuous‐time NCS; continuous‐time networked control systems; control system synthesis; controller‐to‐actuator channel; delays; DOF controller design problem; DOF H∞ control; dynamic output feedback H∞ control; feedback; H∞ control; linear estimation‐based method; linear systems; Lyapunov functional; Lyapunov methods; measurement output arrival instant; measurement output estimation; networked control systems; network‐induced delays; nonuniform distribution characteristics; packet dropouts; sensors; sensor‐to‐controller channel; controller-to-actuator channel; measurement output estimation; continuous-time NCS; sensor-to-controller channel; control system synthesis; H∞ control; linear systems; packet dropouts; measurement output arrival instant; dynamic output feedback H∞ control; feedback; continuous-time networked control systems; Lyapunov functional; actuators; sensors; DOF H∞ control; delays; DOF controller design problem; networked control systems; nonuniform distribution characteristics; continuous time systems; network-induced delays; linear estimation-based method; Lyapunov methods
• ISSN: 1751-8644; 1751-8652; 1751-8652
• DOI: 10.1049/iet-cta.2012.1011

This study is concerned with dynamic output feedback (DOF) H∞ control for continuous-time networked control systems (NCSs). The packet dropouts and network-induced delays in the sensor-to-controller channel, and network-induced delays in the controller-to-actuator channel are taken into account. A linear estimation-based method is proposed to estimate the measurement output, and the non-uniform distribution characteristic of the measurement output arrival instant is taken into full consideration to establish a new model for the considered NCSs. Based on the newly established model and a new Lyapunov functional, the problem of DOF controller design is studied. A numerical example is given to illustrate the effectiveness of the proposed DOF controller design.