Abstract
In order to widen the use of wind power generation, the improvement of wind farm efficiency is required. In wind farms, power loss often occurs due to the wake generated by upstream wind turbines. In this paper, we discuss the effects of wake for a single wind turbine to optimize the wind turbines layout in a wind farm. In the experiment, a Doppler SODAR near a wind turbine is installed in Aoyama-Kogen Wind Farm for measuring wake. Measurements of wind speed and turbulence intensity distributions in wake were performed in order to obtain the characteristics of the wind turbine wake. The test wind turbine which has 50.5m of diameter is located in the position of the distance about 1.86 times of rotor diameter from Doppler SODAR.
