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Validated extrapolation of measured damage within an offshore wind farm using instrumented fleet leaders
Noppe, N.; Hubler, C.; Devriendt, C.; Weijtjens, W. (2020). Validated extrapolation of measured damage within an offshore wind farm using instrumented fleet leaders. Journal of Physics: Conference Series 1618(2): 022005. https://dx.doi.org/10.1088/1742-6596/1618/2/022005
In: Journal of Physics: Conference Series. IOP Publishing: Bristol. ISSN 1742-6588; e-ISSN 1742-6596, meer
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| Beschikbaar in | Auteurs |
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Documenttype: Congresbijdrage
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| Auteurs | | Top |
- Noppe, N., meer
- Hubler, C.
- Devriendt, C., meer
- Weijtjens, W., meer
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| Abstract |
As the older wind farms are slowly reaching their design lifetime, topics like fatigue and lifetime assessment gain importance. To decide on a possible lifetime extension of the turbine and its foundation, an accurate fatigue assessment for every wind turbine in the farm is needed. As the installation of specific sensors needed for a fatigue assessment is too time consuming and costly, the "Fleet Leader Concept" is applied and validated in this paper. Here, a few turbines are instrumented and a fatigue assessment based on rainflow counting and Miner's rule can be performed. For a farm-wide fatigue assessment, the obtained damage is extrapolated towards the other turbines. Sample based bootstrapping is performed to introduce an uncertainty on the results. A successful extrapolation was obtained for in-field measurements at an older offshore wind farm. In general, relative errors of less than 5% on damage were found. |
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