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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