Performance Comparison between Rigorous and Asymptotic Techniques Applied to the Analysis of Wind Turbines
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Performance Comparison between Rigorous and Asymptotic Techniques Applied to the Analysis of Wind TurbinesAbstract
The scattering field analysis of wind turbines using asymptotic and rigorous techniques is presented. Several simulations considering different configurations and frequencies are conducted to compare the performance of the electromagnetic techniques. These predictions are very useful for studying the influence of wind farms in terrestrial radio systems. On the other hand, not only a static analysis has been done but also a study of the scattered fields when the blades are in movement. The Doppler effect due to the blade movement has been taken into account to achieve some simulation results. Modules FASANT and MONURBS of NEWFASANT computer tool have been used. FASANT is based on the geometrical theory of diffraction (GTD) on its uniform theory of diffraction (UTD) formulation and MONURBS is based on the method of moments (MoM) and physical optics (PO). A comparison of the results obtained with both codes is shown, as well as the CPU-time and computer memory required.
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