International Journal of Modern Nonlinear Theory and Application

Volume 1, Issue 3 (September 2012)

ISSN Print: 2167-9479   ISSN Online: 2167-9487

Google-based Impact Factor: 0.5  Citations  

Adaptive Output Tracking for Nonlinear Network Control Systems with Time-Delay

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DOI: 10.4236/ijmnta.2012.13010    3,755 Downloads   7,001 Views  
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ABSTRACT

The problem of adaptive output tracking is researched for a class of nonlinear network control systems with parameter uncertainties and time-delay. In this paper, a new program is proposed to design a state-feedback controller for this system. For time-delay and parameter uncertainties problems in network control systems, applying the backstepping recursive method, and using Young inequality to process the time-delay term of the systems, a robust adaptive output tracking controller is designed to achieve robust control over a class of nonlinear time-delay network control systems. According to Lyapunov stability theory, Barbalat lemma and Gronwall inequality, it is proved that the designed state feedback controller not only guarantees the state of systems is uniformly bounded, but also ensures the tracking error of the systems converges to a small neighborhood of the origin. Finally, a simulation example for nonlinear network control systems with parameter uncertainties and time-delay is given to illustrate the robust effectiveness of the designed state-feedback controller.

Cite this paper

Yu, J. and Zeng, H. (2012) Adaptive Output Tracking for Nonlinear Network Control Systems with Time-Delay. International Journal of Modern Nonlinear Theory and Application, 1, 73-80. doi: 10.4236/ijmnta.2012.13010.

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