Illustration of the wind on the rotor area of a wind turbine

Wind turbines produce a complex and continuously fluctuating power. A large part of  the complexity resides on the input: the wind.The main source of power variation on  conventional wind turbines is the wind speed variation.  The wind is complex and the blades crossing the wind field modify the power fluctuations. The main objective of this chapter is to present a dynamic wind model for power quality assessment of a three bladed up-wind horizontal axis wind turbine type. The wind speed model includes the turbulence and tower shadowin the rotor area.  The figure illustrates an example of the wind field acting on the rotor area of a wind turbine.

Reference:
Pedro Rosas.”Dynamic Influences of Wind Power on the Power System”. PhD Thesys. DTU. 2003.




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