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Asymptotic Tracking of Systems with Non-Symmetrical Input Deadzone Nonlinearity

Asymptotic Tracking of Systems with Non-Symmetrical Input Deadzone Nonlinearity This paper presents an adaptive control scheme for systems with uncertain asymmetrical deadzone nonlinearity at the input of a linear plant. An adaptive inverse block has been developed and used in conjunction with any conventional controllers in order to reduce the effect of deadzone nonlinearity. The deadzone inverse model is non-symmetric and implemented in continuous time. The adaptive deadzone inverse controller is smoothly differentiable and can easily be combined with any of the advanced control methodologies. The asymptotic stability of the closed-loop system is proven by using Lyapunov arguments and simulation results to confirm the efficacy of the control methodology. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Automation and Power Engineering Science and Engineering Publishing Company

Asymptotic Tracking of Systems with Non-Symmetrical Input Deadzone Nonlinearity

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Publisher
Science and Engineering Publishing Company
Copyright
Science and Engineering Publishing Company
ISSN
2161-6442
eISSN
2161-5055

Abstract

This paper presents an adaptive control scheme for systems with uncertain asymmetrical deadzone nonlinearity at the input of a linear plant. An adaptive inverse block has been developed and used in conjunction with any conventional controllers in order to reduce the effect of deadzone nonlinearity. The deadzone inverse model is non-symmetric and implemented in continuous time. The adaptive deadzone inverse controller is smoothly differentiable and can easily be combined with any of the advanced control methodologies. The asymptotic stability of the closed-loop system is proven by using Lyapunov arguments and simulation results to confirm the efficacy of the control methodology.

Journal

International Journal of Automation and Power EngineeringScience and Engineering Publishing Company

Published: Jul 1, 2013

Keywords: Adaptive Control, Non-Symmetric Deadzone, Hard Nonlinearity.

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