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Título: | Zonotopic unknown input observer of discrete-time descriptor systems for state estimation and robust fault detection |
Autor: | Wang, Ye CSIC ORCID; Puig, Vicenç CSIC ORCID ; Xu, Feng CSIC ORCID; Cembrano, Gabriela CSIC ORCID | Palabras clave: | Unknown input observer Zonotopes State estimation Robust fault detection Discrete-time descriptor systems |
Fecha de publicación: | 11-oct-2018 | Editor: | Elsevier | Citación: | IFAC-PapersOnLine 51(24): 307-313 (2018) | Resumen: | This paper studies a set-based unknown input observer based on zonotopes for discrete-time descriptor systems affected by uncertainties with application to state estimation and robust fault detection. In this paper, two types of uncertainties are considered: (i) disturbances and noise both bounded by zonotopes; (ii) unknown inputs that can be decoupled. In terms of different applications, the observer gain for state estimation is designed to minimize the effects of unknown-but-bounded disturbances and noise as well as state estimation errors. On the other hand, for robust fault detection, in addition to attenuating uncertainties, the designed observer gain is also expected to be sensitive to faults. To achieve this goal, we propose an iterative algorithm to design the fault detection gain. Finally, some illustrative results in an application example show the effectiveness of the proposed algorithms. | Versión del editor: | https://doi.org/10.1016/j.ifacol.2018.09.594Get rights and content | URI: | http://hdl.handle.net/10261/179598 | DOI: | 10.1016/j.ifacol.2018.09.594 | ISSN: | 1474-6670 |
Aparece en las colecciones: | (IRII) Artículos |
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Zonotopic Unknown_Wang.pdf | 488,28 kB | Adobe PDF | Visualizar/Abrir |
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