A modern wind turbine rotor with a contemporary rotor size
would easily with the tips penetrate the air between 116 m
and 30 m and herby experience effects of different wind.
With current rules on power performance measurements such
as IEC 61400-121 the reference wind speed is measured at
hub height, an oversimplification of the wind energy power
over the rotor disk area is carried out.
The project comprised a number of innovative and
coordinated measurements on a full scale turbine with remote
sensing technology and simulations on a 500 kW wind
turbine for the effects of wind field characterization.
The objective with the present report is to give a short
overview of the different experiments carried out and results
obtained within the final phase of this project.