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Smoothing control of wind generator output fluctuations by new pitch controller

As wind turbine output is proportional to the cubic of wind speed, the wind turbine generator output fluctuates due to wind speed variations. Hence, if the power capacity of wind power generators becomes large, wind power generator output can have an influence on the power system frequency. Some methods for smoothing the wind generator output fluctuations using several types of energy storage systems have been proposed, however, these methods have a cost problem. This paper proposes a new pitch control system for smoothing the wind generator output fluctuations.