Wind speed modelling considering high-frequency damping effect based on experimental data

Changes in the velocity and direction of wind, causes to change in the turbine input power and in turn, affects the operation of the system, for instance; output voltage, power and torque of an islanded wind turbine changes proportional to wind speed variations. Therefore, accurate and reliable forecasting systems for wind speed are widely recognized as a major contribution for increasing wind penetration. This paper provides a wind speed forecasting method in order to analysis and modelling the behaviour of wind. Wind speed is first modelled considering superposition of mean speed and turbulence components then the effect of the rotor as a low- pass shaping filter is studied. This procedure could be implemented on a wind turbine simulator on account of numerical and experimental results. Finally the outcome model is applied to the wind turbine and then all procedure is simulated using MATLAB codes.