Articles | Volume 4, issue 2
https://doi.org/10.5194/wes-4-325-2019
https://doi.org/10.5194/wes-4-325-2019
Research article
 | 
03 Jun 2019
Research article |  | 03 Jun 2019

Extreme wind fluctuations: joint statistics, extreme turbulence, and impact on wind turbine loads

Ásta Hannesdóttir, Mark Kelly, and Nikolay Dimitrov

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Cited articles

Bak, C., Zahle, F., Bitsche, R., Kim, T., Yde, A., Henriksen, L. C., Natarajan, A., and Hansen, M.: Description of the DTU 10 MW Reference Wind Turbine, Tech. rep., DTU Wind Energy, 2013. a, b, c
Berg, J., Natarajan, A., Mann, J., and G. Patton, E.: Gaussian vs non-Gaussian turbulence: Impact on wind turbine loads, Wind Energy, 19, 1975–1989, 2016. a
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Chamorro, L. P., Lee, S.-J., Olsen, D., Milliren, C., Marr, J., Arndt, R., and Sotiropoulos, F.: Turbulence effects on a full-scale 2.5 MW horizontal-axis wind turbine under neutrally stratified conditions, Wind Energy, 18, 339–349, https://doi.org/10.1002/we.1700, 2015. a
Chougule, A., Mann, J., Segalini, A., and Dellwik, E.: Spectral tensor parameters for wind turbine load modeling from forested and agricultural landscapes, Wind Energy, 18, 469–481, https://doi.org/10.1002/we.1709, 2015. a
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Short summary
We investigate large wind speed fluctuations from a 10-year period at the Danish coastal site Høvsøre. The most extreme fluctuations are not turbulent but due to larger-scale weather phenomena. We find how these fluctuations impact wind turbines using simulations. The results are then compared to an extreme turbulence model described in the wind turbine safety standards, and it is found that the loads on the different turbine components are not the same as what the standard describes.
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