Stable observer-based control for long network-induced delays

Yiming Zhang (1) , Vincent Sircoulomb (1) , Nicolas Langlois (1)

1 IRSEEM - Institut de Recherche en Systèmes Electroniques Embarqués

With regards to the characteristics of uncertain long delay of networked control system (NCS), the stochastic time- delay system can be transformed to a deterministic delay system by placing proper quantities of buffers at the nodes of the double-end networked control systems. An observer-based control design subject to fixed time delay is proposed to construct the augmented state-space model. Based on the Lyapunov function and linear matrix inequality (LMI) theorem, sufficient and necessary conditions for stability of such systems using static state feedback are given. Simulation result proves its effectiveness.

Mots clés: Networked control systems; Mathematical model; Linear matrix inequalities; Stability analysis; Delay; Observers; Equations

Domaines: Automatique / Robotique

Yiming Zhang, Vincent Sircoulomb, Nicolas Langlois. Stable observer-based control for long network-induced delays. 2012 24th Chinese Control and Decision Conference (CCDC), May 2012, Taiyuan, China. pp.2966-2971, ⟨10.1109/CCDC.2012.6244467⟩. ⟨hal-02296966⟩