Monitoring of a Wind Turbine Rotor using a Multi-blade Coordinate Framework

Lars Christian Henriksen, Hans Henrik Niemann, Niels Kjølstad Poulsen

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    In this paper a method to detect asymmetric faults in a wind turbine rotor is presented. The paper describes how fault diagnosis using an observer-based residual generator approach is able to distinguish between the nominal and faulty case by the injection of e.g. a sinusoidal excitation signal into the system. In the case of a wind turbine, an excitation signal is automatically generated by the rotation of the rotor in a turbulent wind eld. Using the multi-blade coordinate transformation, the detection of asymmetries in the rotor of the wind turbine is greatly improved.
    Original languageEnglish
    Title of host publicationSystem Identification
    PublisherInternational Federation of Automatic Control
    Publication date2012
    ISBN (Print)978-3-902823-06-9
    Publication statusPublished - 2012
    Event16th IFAC Symposium on System Identification - Square - Brussels Meeting Centre, Brussels, Belgium
    Duration: 11 Jul 201213 Jul 2012


    Conference16th IFAC Symposium on System Identification
    LocationSquare - Brussels Meeting Centre
    Internet address
    SeriesIFAC Proceedings Volumes (IFAC-PapersOnline)


    • Fault Detection and Diagnosis
    • Mechanical and Aerospace


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