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Wind and Structures Volume 23, Number 6, December 2016 , pages 577-594 DOI: https://doi.org/10.12989/was.2016.23.6.577 |
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Aero-elastic coupled numerical analysis of small wind turbine– generator modelling |
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Jakub Bukala, Krzysztof Damaziak, Hamid Reza Karimi
and Jerzy Malachowski
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| Abstract | ||
| numerical analyses of small wind turbine operation, with particular emphasis on variable speed generator modelling in various wind speed conditions. The following characteristics are determined using the available computer tools: the tip speed ratio as a function of the generator constant (under the assumption of constant wind speed), the turbine coefficient of power as a function of the tip speed ratio (the torque curve is modified accordingly and generator speed and power curves are plotted), turbine power curves and coefficient of power curve as functions of the incoming wind speed. The last stage is to determine forces and torques acting on rotor blades and turbine tower for specific incoming wind speeds in order to examine the impact of the stall phenomena on these values (beyond the rated power of the turbine). It is shown that the obtained results demonstrate a valuable guideline for small wind turbines design process. | ||
| Key Words | ||
| small wind turbines; numerical analysis; FAST; generator; swt; wind energy | ||
| Address | ||
| Jakub Bukala, Krzysztof Damaziak and Jerzy Malachowski: Department of Mechanics and Applied Computer Science, Military University of Technology, gen. Sylvester Kaliski 2, 00-908 Warsaw, Poland Hamid Reza Karimi: Department of Engineering, Faculty of Technology and Sciences, University of Agder, Jon Lilletuns vei 9, 4879 Grimstad, Norway | ||