S
Sten Tronæs Frandsen
Researcher at United States Department of Energy
Publications - 56
Citations - 3753
Sten Tronæs Frandsen is an academic researcher from United States Department of Energy. The author has contributed to research in topics: Wind power & Offshore wind power. The author has an hindex of 19, co-authored 56 publications receiving 3303 citations. Previous affiliations of Sten Tronæs Frandsen include Technical University of Denmark.
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Journal ArticleDOI
Analytical modelling of wind speed deficit in large offshore wind farms
Sten Tronæs Frandsen,Rebecca Jane Barthelmie,Sara C. Pryor,Ole Rathmann,Søren Ejling Larsen,Jørgen Højstrup,Morten Lybech Thøgersen +6 more
TL;DR: In this paper, the authors proposed a model for the wind speed deficit in wind farms and extended it to include both small and large wind farms extending over large areas, and the model handles a regular array geometry with straight rows of wind turbines and equidistant spacing between units in each row.
Journal ArticleDOI
Modelling and measuring flow and wind turbine wakes in large wind farms offshore
Rebecca Jane Barthelmie,Kurt Schaldemose Hansen,Sten Tronæs Frandsen,Ole Rathmann,J.G. Schepers,W. Schlez,John D. Phillips,K. Rados,Arthouros Zervos,E.S. Politis,P. Chaviaropoulos +10 more
TL;DR: In this article, the authors compare different types of models from computational fluid dynamics (CFD) to wind farm models in terms of how accurately they represent wake losses when compared with measurements from offshore wind farms.
Journal ArticleDOI
Quantifying the Impact of Wind Turbine Wakes on Power Output at Offshore Wind Farms
Rebecca Jane Barthelmie,Sara C. Pryor,Sten Tronæs Frandsen,Kurt Schaldemose Hansen,J.G. Schepers,K. Rados,W. Schlez,A. Neubert,Leo E. Jensen,S. Neckelmann +9 more
TL;DR: In this article, a detailed data ensembles of power losses due to wakes at the large wind farms at Nysted and Horns Rev are presented and analyzed, and a number of ensemble averages are simulated with a range of wind farm and computational fluid dynamics models and compared to observed wake losses.
Journal ArticleDOI
Comparison of Wake Model Simulations with Offshore Wind Turbine Wake Profiles Measured by Sodar
Rebecca Jane Barthelmie,Gunner Chr. Larsen,Sten Tronæs Frandsen,L. Folkerts,K. Rados,Sara C. Pryor,Bernhard Lange,G. Schepers +7 more
TL;DR: In this paper, the authors evaluate wind speed decrease (wake) downstream of a wind turbine using six experiments where free-stream and wake wind speed profiles were measured using a ship-mounted sodar at a small offshore wind farm.
Journal ArticleDOI
Modelling and measurements of power losses and turbulence intensity in wind turbine wakes at Middelgrunden offshore wind farm
Rebecca Jane Barthelmie,Sten Tronæs Frandsen,M. Nielsen,Sara C. Pryor,Pierre-Elouan Réthoré,Hans Ejsing Jørgensen +5 more
TL;DR: In this article, power losses and turbulence increase due to wind turbine wake interactions in large offshore wind farms are quantified based on observations from Middelgrunden and state-of-the-art models.