Fault diagnosis of a Wind Turbine Rotor using a Multi-blade Coordinate Framework

Lars Christian Henriksen, Hans Henrik Niemann, Niels Kjølstad Poulsen

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    Abstract

    Fault diagnosis of a wind turbine rotor is considered. The faults considered are sensor faults and blades mounted with a pitch offset. A fault at a single blade will result in asymmetries in the rotor, which can be applied for fault diagnosis. The diagnosis is derived by using the multiblade coordinate (MBC) transformation also known as the Coleman transformation together with active fault diagnosis (AFD). This transforms the setup from rotating to fixed frame coordinates. The rotor speed acts as the auxiliary input for the active diagnosis. The applied method take the varying rotor speed into account. Operation at different mean wind speeds is examined and it is discussed how to exploit the findings acquired by the investigation of the various faults.
    Original languageEnglish
    Title of host publicationFault Detection, Supervision and Safety of Technical Processes
    Volume8
    PublisherInternational Federation of Automatic Control
    Publication date2012
    Pages37-42
    ISBN (Print)978-3-902823-09-0
    DOIs
    Publication statusPublished - 2012
    Event8th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes - National Autonomous University of Mexico, Mexico City, Mexico
    Duration: 29 Aug 201231 Aug 2012

    Conference

    Conference8th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes
    LocationNational Autonomous University of Mexico
    Country/TerritoryMexico
    CityMexico City
    Period29/08/201231/08/2012
    SeriesIFAC Proceedings Volumes (IFAC-PapersOnline)

    Keywords

    • Wind Turbine
    • Fault Diagnosis

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