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.
Originalsprog | Engelsk |
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Titel | Safety, 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 |
Redaktører | Hitoshi Futura, Dan M. Frangopol, Masanobu Shinozuka, Michiyuki Hirokane |
Antal sider | 8 |
Forlag | CRC Press |
Publikationsdato | 2009 |
Sider | 124-131 |
ISBN (Elektronisk) | 9780415475570 |
Status | Udgivet - 2009 |
Begivenhed | International Conference on Structural Safety and Reliability - Osaka, Japan Varighed: 13 sep. 2009 → 17 sep. 2009 Konferencens nummer: 10 |
Konference
Konference | International Conference on Structural Safety and Reliability |
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Nummer | 10 |
Land/Område | Japan |
By | Osaka |
Periode | 13/09/2009 → 17/09/2009 |
Bibliografisk note
Udgivelsesåret er 2009. I Proceedings er der ved en fejl trykt år 2010.Emneord
- Wind Turbines
- Field Measurements
- ICOSSAR 2009