Observer-based sensor fault detectability: about robust positive invariance approach and residual sensitivity
10.1016/j.ifacol.2017.08.926
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/110505
Tipus de documentText en actes de congrés
Data publicació2017
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
This paper considers detectability of deviation of sensors from their nominal behavior for a class of linear time-invariant discrete-time systems in the presence of bounded additive uncertainties. Detectable sensor faults using interval observers are analyzed considering two distinct approaches: invariant-sets and classical fault-sensitivity method. It can be inferred from this analysis that both approaches derive distinct formulations for minimum detectable fault magnitude, though qualitatively similar. The core difference lies in the method of construction of the invariant set offline in the former method and the reachable approximation of the convergence set using forward iterative techniques in the latter. This paper also contributes in giving a formulation for minimum fault magnitudes with invariant sets using an observer-based approach. Finally, an illustrative example is used to compare both approaches.
Descripció
© <year>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
CitacióRahman, A., Pourasgharlafmejani, M., Puig, V., Olaru, S., Ocampo-Martinez, C.A., Reppa, V. Observer-based sensor fault detectability: about robust positive invariance approach and residual sensitivity. A: World Congress of the International Federation of Automatic Control. "IFAC 2017: 20th World Congress of the International Federation of Automatic Control: Toulouse, France: July 9-14, 2017: proceedings book". Toulouse: 2017, p. 5041-5046.
Versió de l'editorhttp://www.sciencedirect.com/science/article/pii/S2405896317313927
Col·leccions
- IRI - Institut de Robòtica i Informàtica Industrial, CSIC-UPC - Ponències/Comunicacions de congressos [576]
- Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial - Ponències/Comunicacions de congressos [1.500]
- SAC - Sistemes Avançats de Control - Ponències/Comunicacions de congressos [582]
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1876-Observer-b ... d-Residual-Sensitivity.pdf | 337,6Kb | Visualitza/Obre |