Kosiba, E.A., Liu, G., Shtessel, Y.B. et al. (1 more author) (2006) Output tracking via sliding modes in causal systems with time delay modeled by higher order pade approximations. In: Proceedings of the International Workshop on Variable Structure Systems. International Workshop on Variable Structure Systems 2006 , VSS'06 , 05-07 Jun 2006, Alghero, Italy. Institute of Electrical and Electronics Engineers , pp. 250-255. ISBN 1-4244-0208-5
Abstract
Output tracking in a SISO causal uncertain nonlinear system with an output subject to a time delay is considered using sliding mode control. A higher order Pade approximation to a delay function with a known time delay is used to construct a model of a transformed system without a time delayed output and is employed in a feedback sliding mode control. This model functions as a predictor of the plant states and the plant output, but is of nonminimum phase due to the application of the Pade approximation. The method of the stable system center is used to stabilize the internal dynamics of this plant model, and a control is developed using a sliding surface to allow the plant to track an arbitrary reference profile given by an exogenous system with a known characteristic equation. Simulations of the system are performed for the plant model using a first, second and third order Pade approximations and a controller in plant feedback mode. Numerical examples for Pade approximations of increasing order are considered and compared
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Copyright 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. |
Keywords: | SISO causal uncertain nonlinear system; feedback sliding mode control; higher order Pade approximations; output tracking; time delay model |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > School of Mathematics and Statistics (Sheffield) |
Depositing User: | Mrs Megan Hobbs |
Date Deposited: | 12 Apr 2010 09:29 |
Last Modified: | 19 Dec 2022 13:24 |
Published Version: | http://dx.doi.org/10.1109/VSS.2006.1644526 |
Status: | Published |
Publisher: | Institute of Electrical and Electronics Engineers |
Identification Number: | 10.1109/VSS.2006.1644526 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:10698 |