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Turbulence influence on optimum tip speed ratio for a 200 kW vertical axis wind turbine

Möllerström, Erik, Eriksson, Sandra, Goude, Anders, Ottermo, Fredric, Hylander, Jonny
2016

Artikel i tidskrift (Refereegranskat)

Abstract:

The influence of turbulence intensity (TI) on the tip speed ratio for maximum power coefficient, here called λCp-max, is studied for a 200 kW VAWT H-rotor using logged data from a 14 month period with the H-rotor operating in wind speeds up to 9 m/s. The TI - λCp-max relation is examined by dividing 10 min mean values in different turbulence intensity ranges and producing multiple CP(λ) curves. A clear positive relation between TI and λCp-max is shown and is further strengthened as possible secondary effects are examined and deemed non-essential. The established relation makes it possible to tune the control strategy to enhance the total efficiency of the turbine.

Citera: Möllerström, Erik, Eriksson, Sandra, Goude, Anders, Ottermo, Fredric & Hylander, Jonny, Turbulence influence on optimum tip speed ratio for a 200 kW vertical axis wind turbine, Journal of Physics, Conference Series., 753, 2016https://doi.org/10.1088/1742-6596/753/3/032048