Yan, Xinggang, Spurgeon, Sarah K., Edwards, Christopher (2013) State and Parameter Estimation for Nonlinear Delay Systems Using Sliding Mode Techniques. IEEE Transactions on Automatic Control, 58 (4). pp. 1023-1029. ISSN 0018-9286. (doi:10.1109/TAC.2012.2215531) (KAR id:35571)
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Official URL: http://dx.doi.org/10.1109/TAC.2012.2215531 |
Abstract
In this technical note, a class of time varying delay nonlinear systems is considered where both parametric uncertainty and structural uncertainty are involved. The uncertain parameters are embedded in the system nonlinearly. The bound on the structural uncertainty takes nonlinear form and is time delayed. A sliding mode observer is proposed to estimate the system state and an adaptive law is proposed to estimate the unknown parameters simultaneously. Using the Lyapunov-Razuminkhin approach, sufficient conditions are developed such that the error system is uniformly ultimately bounded. A simulation on a bioreactor system shows the effectiveness of the approach
Item Type: | Article |
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DOI/Identification number: | 10.1109/TAC.2012.2215531 |
Uncontrolled keywords: | INSPEC: CONTROLLED INDEXING Lyapunov methods delays nonlinear control systems observers parameter estimation variable structure systems INSPEC: NON CONTROLLED INDEXING Lyapunov-Razuminkhin approach nonlinear delay systems parameter estimation parametric uncertainty sliding mode observer sliding mode techniques structural uncertainty AUTHOR KEYWORDS Adaptive estimation nonlinear system sliding mode state estimation time delay |
Subjects: | T Technology |
Divisions: | Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts |
Depositing User: | Tina Thompson |
Date Deposited: | 22 Oct 2013 09:33 UTC |
Last Modified: | 05 Nov 2024 10:19 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/35571 (The current URI for this page, for reference purposes) |
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