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Título: | A robust H∞ observer design for unknown input nonlinear systems: Application to fault diagnosis of a wind turbine |
Autor: | Witczak, Marcin; Puig, Vicenç CSIC ORCID ; Rotondo, Damiano CSIC ORCID ; Rozprza Faygel, Michal de; Mrugalski, Marcin | Fecha de publicación: | 2015 | Editor: | Institute of Electrical and Electronics Engineers | Citación: | MED 2015 | Resumen: | The paper is devoted to the problem of designing robust unknown input observer (UIO) for fault estimation purpose. The proposed approach is based on the Takagi-Sugeno models which can be effectively applied for modelling of the wide class of nonlinear systems. It also revisits the recent results proposed in the literature and provides a less restrictive design procedure of a robust UIO. In particular, the general UIO strategy and the H∞ framework are provided to design a robust fault estimation methodology. The resulting design procedure guarantees that a prescribed disturbance attenuation level is achieved with respect to the state estimation error. The main advantage of the proposed approach boils down to its simplicity because it reduces to solving a set of Linear Matrix Inequalities (LMIs). The final part of the paper presents an illustrative example devoted to the fault estimation of a three blade 1 MW variable-speed, variable-pitch wind turbine. | Descripción: | Trabajo presentado a la 23th Mediterranean Conference on Control and Automation celebrada en Torremolinos (España) del 16 al 19 de junio de 2015. | Versión del editor: | http://dx.doi.org/10.1109/MED.2015.7158745 | URI: | http://hdl.handle.net/10261/133319 | DOI: | 10.1109/MED.2015.7158745 | Identificadores: | doi: 10.1109/MED.2015.7158745 |
Aparece en las colecciones: | (IRII) Comunicaciones congresos |
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