Extrapolation of Extreme Response for Wind Turbines based on FieldMeasurements

Henrik Stensgaard Toft, John Dalsgaard Sørensen

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Abstract

The characteristic loads on wind turbines during operation are among others dependent on the mean wind speed, the turbulence intensity and the type and settings of the control system. These parameters must be taken into account in the assessment of the characteristic load. The characteristic load is normally determined by statistical extrapolation of the simulated response during operation according to IEC 61400-1 2005. However, this method assumes that the individual 10 min. time series are independent and that peaks extracted are independent. In the present paper two new methods for loads extrapolation are presented. The first method is based on the same assumptions as the existing method but the statistical extrapolation is only performed for a limited number of mean wind speeds where the extreme load is likely to occur. For the second method the mean wind speeds are divided into storms which are assumed independent and the characteristic loads are determined from the extreme load in each storm.

OriginalsprogEngelsk
TitelSafety, Reliability and Risk of Structures, Infrastructures and Engineering Systems : Proceedings of the tenth International Conference on Structural Safety and Reliability (ICOSSAR2009), Osaka, Japan, 13-17 September
RedaktørerHitoshi Futura, Dan M. Frangopol, Masanobu Shinozuka, Michiyuki Hirokane
Antal sider8
ForlagCRC Press
Publikationsdato2009
Sider124-131
ISBN (Elektronisk)9780415475570
StatusUdgivet - 2009
BegivenhedInternational Conference on Structural Safety and Reliability - Osaka, Japan
Varighed: 13 sep. 200917 sep. 2009
Konferencens nummer: 10

Konference

KonferenceInternational Conference on Structural Safety and Reliability
Nummer10
Land/OmrådeJapan
ByOsaka
Periode13/09/200917/09/2009

Bibliografisk note

Udgivelsesåret er 2009. I Proceedings er der ved en fejl trykt år 2010.

Emneord

  • Wind Turbines
  • Field Measurements
  • ICOSSAR 2009

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