IEEE transactions on industrial electronics (1982), 2008-11, Vol.55 (11), p.4029-4036
2008
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Details
- Autor(en) / Beteiligte
- Titel
- Adaptive Sliding-Mode-Observer-Based Fault Reconstruction for Nonlinear Systems With Parametric Uncertainties
- Ist Teil von
- IEEE transactions on industrial electronics (1982), 2008-11, Vol.55 (11), p.4029-4036
- Ort / Verlag
- New York: IEEE
- Erscheinungsjahr
- 2008
- Quelle
- IEEE Electronic Library (IEL)
- Beschreibungen/Notizen
- In this paper, a class of nonlinear systems with uncertain parameters is considered. A novel adaptive law is designed to identify unknown parameters under the assumption that the time derivative of some of the outputs is measurable. Then, a sliding-mode observer is proposed to estimate the system state variables. By using the inherent features of sliding-mode observers, a fault-reconstruction scheme is proposed which can be implemented online. The proposed reconstruction signal can approximate the fault signal to any required accuracy even in the presence of uncertain parameters. A simulation example for a magnetic-levitation system is given to illustrate the feasibility and effectiveness of the proposed scheme.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0278-0046eISSN: 1557-9948DOI: 10.1109/TIE.2008.2003367Titel-ID: cdi_proquest_miscellaneous_34415726
- Format
- –
- Schlagworte
- Adaptive control, Adaptive systems, Approximation, Derivatives, Dynamical systems, Fault detection, fault diagnosis, Faults, Linear systems, Nonlinear dynamics, nonlinear estimation, Nonlinear systems, Observers, On-line systems, Reconstruction, Robustness, Sliding mode control, sliding modes, State estimation, Time measurement, Uncertainty