Why curved wind turbine rows are better than straight ones

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Wind turbine wake effects in wind farms not only reduce the wind farm power production but also influence the wind farm power dependency on wind direction. In this paper, the wake effects in wind farm layouts consisting of curved and straight wind turbine rows are studied using engineering wake models and a Reynolds-averaged Navier-Stokes model. These models predict a similar annual energy production for both wind farm layouts, but show stronger wake losses in the aligned wind directions for a rectangular wind farm layout, while the wake losses for a curved wind farm layout are more spread out over a larger wind direction sector. An energy system level simulation predicts that the enhanced spreading of wake losses over wind directions results in less hourly variability in energy generation on a Danish energy system level. Thus, our results show that a curved wind farm layout is more favorable compared to a wind farm layout with straight rows.
Original languageEnglish
Title of host publicationProceedings of the Wake Conference 2019
Number of pages12
PublisherIOP Publishing
Publication date2019
Article number012028
Publication statusPublished - 2019
EventWake Conference 2019 - Uppsala University Campus Gotland, Visby, Sweden
Duration: 22 May 201924 May 2019


ConferenceWake Conference 2019
LocationUppsala University Campus Gotland
Internet address
SeriesJournal of Physics: Conference Series (Online)

Cite this

Krabben, I. G. W., van der Laan, M. P., Koivisto, M. J., Larsen, T. J., Pedersen, M. M., & Hansen, K. S. (2019). Why curved wind turbine rows are better than straight ones. In Proceedings of the Wake Conference 2019 (1 ed., Vol. 1256). [012028] IOP Publishing. Journal of Physics: Conference Series (Online) https://doi.org/10.1088/1742-6596/1256/1/012028