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Título: | FDI and FTC of wind turbines using the interval observer approach and virtual actuators/sensors |
Autor: | Blesa, Joaquim CSIC ORCID ; Rotondo, Damiano CSIC ORCID ; Puig, Vicenç CSIC ORCID ; Nejjari, Fatiha | Palabras clave: | Fault diagnosis Interval observer Fault tolerant control Virtual sensors Virtual actuators Wind turbine |
Fecha de publicación: | 2014 | Editor: | Elsevier | Citación: | Control Engineering Practice 24: 138-155 (2014) | Resumen: | In this work, the problem of Fault Detection and Isolation (FDI) and Fault Tolerant Control (FTC) of wind turbines is addressed. Fault detection is based on the use of interval observers and unknown but bounded description of the noise and modeling errors. Fault isolation is based on analyzing the observed fault signatures on-line and matching them with the theoretical ones obtained using structural analysis and a row-reasoning scheme. Fault tolerant control is based on the use of virtual sensors/actuators to deal with sensor and actuator faults, respectively. More precisely, these FTC schemes, that have been proposed previously in state space form, are reformulated in input/output form. Since an active FTC strategy is used, the FTC module uses the information from the FDI module to replace the real faulty sensor/actuator by activating the corresponding virtual sensor/actuator. Virtual actuators/sensors require additionally a fault estimation module to compensate the fault. In this work, a fault estimation approach based on batch least squares is used. The performance of the proposed FDI and FTC schemes is assessed using the proposed fault scenarios considered in the wind turbine benchmark introduced in IFAC SAFEPROCESS 2009. Satisfactory results have been obtained in both FDI and FTC. © 2013 Elsevier Ltd. | Versión del editor: | http://dx.doi.org/10.1016/j.conengprac.2013.11.018 | URI: | http://hdl.handle.net/10261/96989 | DOI: | 10.1016/j.conengprac.2013.11.018 | Identificadores: | issn: 0967-0661 |
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FDI and FTC of Wind.pdf | 602,15 kB | Adobe PDF | Visualizar/Abrir |
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