Modeling, analysis and control of networked control systems — Network-induced delay

Considering the network-induced delay existed in the network control systems, a simple simulation is required firstly to understand the effect of network-induced delay on system performance, the delay is inevitable, which can degrade the performance of control system and even destabilize the system, so it is necessary for us to study this problem. Secondly, the modeling of networked control systems with constantly delay is presented; Thirdly, we carry on the stable analysis and the controller design based on the Lyapunov stability theory and the LMI technology, and sufficient condition of asymptotic stability of the closed-loop system, an analysis of guaranteed cost state feedback controller is presented in paper. Furthermore, the state feedback controller of the system is obtained by using the corresponding solution of LMI (Linear Matrix Inequality) toolbox of MATLAB. Finally, the simulation results verified the accuracy and validity of the theoretical analysis result.