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

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...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2016-09, Vol.753 (3), p.32048
Main Authors: Möllerström, E., Eriksson, S., Goude, A., Ottermo, F., Hylander, J.
Format: Article
Language:English
Subjects:
Aerodynamics
Maximum power
Physics
Rotors
Tip speed
Turbulence intensity
Vertical axis wind turbines
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1742-6588
1742-6596
1742-6596
DOI:10.1088/1742-6596/753/3/032048