The Importance of Wake Meandering on Wind Turbine Fatigue Loads in Wake
نویسندگان
چکیده
Considering loads when optimizing wind-farm layouts or designing farm-control strategies is important, but the computational cost of using high-fidelity wake models in loop can be prohibitively high. Using simpler that consider only spatial variation turbulence statistics a tempting alternative, accuracy these with respect to aeroelastic response not well understood. This paper therefore highlights effect replacing meandering spatially varying (“profile functions”) inflow downstream turbine. Profile functions at different and lateral locations are extracted from large-eddy simulation an upstream turbine compared two lower-fidelity models: one prescribes both mean standard deviation mean. The NREL 5 MW wind simulated three wake-model fidelities, various quantities interest compared. values for power rotor speed medium-and low-fidelity model match well, fatigue varies greatly depending on load channel. Prescribing profile function beneficial tower-base fore-aft moment; all other DELs had similar accuracies medium- models. concludes blade estimated simple some accuracy, care should taken channels related shaft torsion bending moment.
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ژورنال
عنوان ژورنال: Energies
سال: 2021
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en14217313