Wake measurement of utility-scale wind turbine wake using drone

Abstract In this study, we investigated a method of utilizing the drone itself as a wind speed sensor without mounting a special observation device on the drone. As a result, we constructed a calibration formula to convert the flight record data to an arbitrary wind speed. Next, we applied this method to the airflow measurement in the wake region for the utility-scale wind turbine and succeeded in reproducing the airflow characteristics caused by the wind turbine wake phenomenon.