Estimation of Generation Power of Wind Turbine due to Doppler SODAR Assessment

This paper describes the wind assessment of high layer for siting the wind turbine on the complex terrain, which is based on the data measured by the use of Doppler SODAR. Although a rough estimation of the wind assessment using standard meteorological anemometers at low layer are cost effective and easy to be installed, it is necessary to measure the wind condition at hub height for accurate assessment. Comparison between measured data by Doppler SODAR and the data predicted from observation of the wind condition at low layer is performed. Large difference is seen in the measured wind profile and calculated power law plots of the wind. Estimation of generation power of wind turbine due to SODAR measurement agrees well with the actual turbine generation power. In the complex terrain, it can be said that observation of the low layers does not suffice to assess accurately the wind, while Doppler SODAR measurement is useful