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Título

A robust H∞ observer design for unknown input nonlinear systems: Application to fault diagnosis of a wind turbine

AutorWitczak, Marcin; Puig, Vicenç CSIC ORCID ; Rotondo, Damiano CSIC ORCID ; Rozprza Faygel, Michal de; Mrugalski, Marcin
Fecha de publicación2015
EditorInstitute of Electrical and Electronics Engineers
CitaciónMED 2015
ResumenThe 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.
DescripciónTrabajo presentado a la 23th Mediterranean Conference on Control and Automation celebrada en Torremolinos (España) del 16 al 19 de junio de 2015.
Versión del editorhttp://dx.doi.org/10.1109/MED.2015.7158745
URIhttp://hdl.handle.net/10261/133319
DOI10.1109/MED.2015.7158745
Identificadoresdoi: 10.1109/MED.2015.7158745
Aparece en las colecciones: (IRII) Comunicaciones congresos




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