Abstract:

The H∞ state-feedback controller design problem for a class of nonlinear Hamilton networked control systems with actuator saturation was investigated. Subject to actuator saturation, uncertain networkinduced delays and data packet dropout were included in the networked control systems. The disturbances of the systems studied have unknown statistical characteristics but bounded norm. First, according to the structural characteristics of Hamilton systems and the bound of networkinduced delays and data packet dropout, networkinduced delays and data packet dropout were changed into time-varying time-delay. Then, by using the stability theorem of Lyapunov-Krasovskii,  the H∞ controller was designed and which also satisfied the requirements in  H∞ performance. The unknown parameters of the controller were obtained by solving a special kind of inequalities. Finally, a example was given to illustrate the efficiency of the proposed method.

Key words: networked control systems, nonlinear Hamilton systems, H∞control, data packet dropout, time-delay