About the Stabilization of a Nonlinear Perturbed Difference Equation

This paper investigates the local asymptotic stabilization of a very general class of instable autonomous nonlinear difference equations which are subject to perturbed dynamics which can have a different order than that of the nominal difference equation. In the general case, the controller consists...

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Main Author: M. De la Sen
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Discrete Dynamics in Nature and Society
Online Access:http://dx.doi.org/10.1155/2012/320302
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author M. De la Sen
author_facet M. De la Sen
author_sort M. De la Sen
collection DOAJ
description This paper investigates the local asymptotic stabilization of a very general class of instable autonomous nonlinear difference equations which are subject to perturbed dynamics which can have a different order than that of the nominal difference equation. In the general case, the controller consists of two combined parts, namely, the feedback nominal controller which stabilizes the nominal (i.e., perturbation-free) difference equation plus an incremental controller which completes the stabilization in the presence of perturbed or unmodeled dynamics in the uncontrolled difference equation. A stabilization variant consists of using a single controller to stabilize both the nominal difference equation and also the perturbed one under a small-type characterization of the perturbed dynamics. The study is based on Banach fixed point principle, and it is also valid with slight modification for the stabilization of unstable oscillatory solutions.
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spelling doaj-art-97a48fd55b6b4dfa93100e7885c552452025-08-20T03:37:09ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2012-01-01201210.1155/2012/320302320302About the Stabilization of a Nonlinear Perturbed Difference EquationM. De la Sen0Institute of Research and Development of Processes, Campus of Leioa, Bizkaia, 48080 Bilbao, SpainThis paper investigates the local asymptotic stabilization of a very general class of instable autonomous nonlinear difference equations which are subject to perturbed dynamics which can have a different order than that of the nominal difference equation. In the general case, the controller consists of two combined parts, namely, the feedback nominal controller which stabilizes the nominal (i.e., perturbation-free) difference equation plus an incremental controller which completes the stabilization in the presence of perturbed or unmodeled dynamics in the uncontrolled difference equation. A stabilization variant consists of using a single controller to stabilize both the nominal difference equation and also the perturbed one under a small-type characterization of the perturbed dynamics. The study is based on Banach fixed point principle, and it is also valid with slight modification for the stabilization of unstable oscillatory solutions.http://dx.doi.org/10.1155/2012/320302
spellingShingle M. De la Sen
About the Stabilization of a Nonlinear Perturbed Difference Equation
Discrete Dynamics in Nature and Society
title About the Stabilization of a Nonlinear Perturbed Difference Equation
title_full About the Stabilization of a Nonlinear Perturbed Difference Equation
title_fullStr About the Stabilization of a Nonlinear Perturbed Difference Equation
title_full_unstemmed About the Stabilization of a Nonlinear Perturbed Difference Equation
title_short About the Stabilization of a Nonlinear Perturbed Difference Equation
title_sort about the stabilization of a nonlinear perturbed difference equation
url http://dx.doi.org/10.1155/2012/320302
work_keys_str_mv AT mdelasen aboutthestabilizationofanonlinearperturbeddifferenceequation