Three Kind Of Robust H_∞ Control Method Of Generalized Network System Research

Since the end of the 20 th century, under the drive of the new revolution of science and technology and the network technology, the rapid development of communication networks, control system, the rapid development of computer information, wide application, network control system, success will come when conditions are ripe. Network control system has the advantages of both network and control. It is not only in line with the development requirements of the information age, but also has a wide application in many fields, so it is very important to study the control method of the generalized network system. In this paper, the robust control method for the three kind of generalized network system is studied, the main work is as follows:1) For the delay problem, the problem of the generalized network system is studied. Firstly, a mathematical model is established, and a sufficient condition for the robust stability of the system is obtained by using the LMI method and the Lyapunov function. Finally, the effectiveness of the proposed control method is verified by numerical simulation.2) The article researches the model based on date packet dropout and simulink the system. Aiming at data packet dropout of NCS, the article analyse the stability of the NCS.3) Because of the significance of the influence by networked-induced time delay and data packet dropout, model creation for NCSs must take them into account especially.The H_∞ control problem was addressed for a class of networked control systems with network-induced delays and packet dropouts.A new type of static output feedback control law was proposed based on the augmented system model.By using the notion of time-w indow packet dropout rate and the average dwell time method,sufficient conditions was obtained for the robust stability and the weighted H_∞ performance of the closed-loop NCS.The effectiveness of the proposed approach was validated.