|Global Output Feedback Regulation of Uncertain Nonlinear Systems with Unknown Time Delay
Weiyong Yu, Shutang Liu*, and Fangfang Zhang
International Journal of Control, Automation, and Systems, vol. 13, no. 2, pp.327-335, 2015
Abstract : This paper investigates the problem of global output feedback regulation for a class of nonlinear systems with unknown time delay. It is also allowed to contain uncertain functions of all the states and input as long as the uncertainties satisfying certain bounded condition for the considered systems. In this paper, a constructive control technique has been proposed for controlling the systems. By using dynamic high-gain scaling approach and choosing an appropriate Lyapunov-Krasovskii functional, a delay-independent robust adaptive output feedback controller is constructed such that the states of the considered systems achieve global regulation. Two simulation examples are provided to demonstrate the effectiveness of the proposed design scheme.
Adaptive control, output feedback, time-delay systems, uncertain nonlinear systems.
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