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http://dx.doi.org/10.5293/kfma.2016.19.6.014

An Investigation on Thrust Properties under Wind Shear for an On-Shore 2 MW Wind Turbine  

Lim, Chae Wook (Department of Mechanical Engineering, Hanbat National University)
Publication Information
The KSFM Journal of Fluid Machinery / v.19, no.6, 2016 , pp. 14-18 More about this Journal
Abstract
Multi-MW wind turbines have very large blades over 40~50 m in length. Some factors like wind shear and tower shadow make an effect on asymmetric loads on the blades. Larger asymmetric loads are produced as the length of blade is getting longer. In this paper, a 2 MW on-shore wind turbine is considered and variations of thrust on 3 blades and rotor hub under wind shear are calculated by using a commercial Bladed S/W and dynamic properties of the thrust variations are investigated. It is shown that the amplitude of the asymmetric thrust on each blade under wind shear is getting larger as the wind speed increases, the frequency of the thrust variation on each blade is same as the one of rotor speed, and the frequency of the thrust variation at rotor hub is 3 times as high as the one of rotor speed.
Keywords
Asymmetric Load; Thrust; Wind Shear; Wind Turbine;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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