AN ADAPTIVE FEEDBACK CONTROLLER WITH OBSERVER FOR LINEARIZABLE CHAOTIC SYSTEMS

A. Boulkroune, M. Chekireb, M. Tadjine, and S. Bouatmane

Keywords

Chaotic systems, adaptive feedback control, H∞ control, observer, chaos control, chaotic system synchronization

Abstract

In this paper, an adaptive feedback controller with observer is developed for a class of chaotic systems. This controller does not need the availability of state variables. It can be used for tracking a smooth orbit that can be a limit cycle or a chaotic orbit of another system. This adaptive feedback controller is constructed with H∞ control technique. Based on Lyapunov stability theorem, the proposed adaptive feedback control system can guarantee the stability of whole closed-loop system and achieve the H∞ tracking performance as well. To demonstrate the efficiency of the proposed scheme, two well-known chaotic systems namely Duffing–Holmes system and Lur’e-like system are considered as illustrative examples.

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