Modeling of wind turbine power curve

Energy is available in two different alternatives, non-renewable (coal, fuel and natural gas) and renewable (solar, wind, hydro and wave) sources. Especially, after the industrial revolution in the nineteenth century, first coal and then fuel oil are used as primary energy sources for the needs of modern communities. As it is known, fossil fuels have limited potential, and at the current rate of exploitation they are expected to be depleted within the next centuries. This is one of the reasons why clean, sustainable and environmentally friendly alternative energy resources like wind, solar, etc are currently sought. This paper aims to characterize the power curve of the wind energy production and to estimate the power when a WTG operates between the cut-in wind speed and the rated wind speed. These are done by different methods and their performance is measured using the root mean square error(RMSE). Through the results, it is proved that cluster center estimation method is the best method among all of the other proposed methods.