Stabilizing unstable equilibria using observer-based neural networks with applications in chaos suppression

In this paper, the observer-based stabilization of unstable equilibrium points of a class of unknown nonlinear systems is proposed. The controller is based on feedback linearization where the observer system and control signal are directly estimated by a nonlinear in parameter neural network (NLPNN)...

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Hauptverfasser: Yadmellat, P., Nikravesh, S.K.Y.
Format: Tagungsbericht
Sprache:eng
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Beschreibung
Zusammenfassung:In this paper, the observer-based stabilization of unstable equilibrium points of a class of unknown nonlinear systems is proposed. The controller is based on feedback linearization where the observer system and control signal are directly estimated by a nonlinear in parameter neural network (NLPNN). A modified back propagation (BP) algorithm with e-modification was used to update the weights of the network. Globally uniformly ultimately boundedness of overall closed-loop system is ensured using Lyapunov's direct method. To verify the effectiveness of the proposed observer-based controller, a set of simulations was performed on a Rossler and Lorenz chaotic systems.
ISSN:2328-1448
DOI:10.1109/CICA.2009.4982789