Robust Exponential Stability Analysis Of A Class Of Networked Control System Based On Switching

With the growing scale of the control systems and the rapid development of communications through computer, the research of networked control systems has become one of the concerned areas in controll fields. Networked control systems have many advantages such as the information resource sharing, flexibility and easy maintenance, at the same time because of the intervention of a network in the control process, inevitably it brings many problems such as information transmission delay, data packets loss. How to use modem control methods to solve these problems in the study of networked control system has theoretical and practical significance.In this thesis we analyze the robust exponential stability and design robust controller of networked control systems based on switchings. The main results are as follows:First, this thesis introduces a class of switching controllers for a networked model with exponential stability conditions, we take uncertainties into account on the basis of the original model; then we design appropriate networked controllers to ensure robust exponential stability of switched systems.Secondly, the time delay is considered. For switching delay systems, the Lyapunov-Krasovskii method and linear matrix inequality method are used to study the robust exponential stability of the new improved model and solve a class of networked control systems with data packet loss and network transmission delay. Then the systems are simulated to show the effectiveness of the results.Finally, the results of the thesis are summarized and further research problems and shortcomings of the networked systems based switching are pointed out.