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Effects of Rotor-Blade Deformation onto Performance of Domestic Wind Turbines
Abstract
and gravitational effects has on the performance of small wind turbines. A blade model of stiff finite
elements connected by rotating junctions is used. Mechanical deformations are simulated by
controlled gravity and torsional forces, and their effects are measured through the response of the
wind turbine. Tests have been run before and after the deformation process under different wind
conditions in a wind tunnel. No centrifugal stiffening and gyroscopic moments are considered due to
the low angular speed. Wind speed was controlled to determine the effect of the deformation on the
performance of the wind turbine as a function of the wind power. The results have shown that in all
cases, the effects of the deformation are negative, and the decrease in power has been calculated
depending on wind conditions.
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DOI: https://doi.org/10.37591/joaest.v12i1.4425
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