Experiment of a wind generator participation to frequency control

In this paper, a primary frequency control strategy based on fuzzy logic designed for variable speed wind generators is proposed and tested on a 2,2 kW test bench. The fuzzy logic supervisor ensures a regular primary reserve on a large range of wind speed without any wind speed measurement. This supervisor controls simultaneously the generator torque and the pitch angle to keep the primary reserve; it determines in real time the generator power reference value. The fuzzy logic supervisor is compared with a classical strategy which maximises the power efficiency.The experiments point out the regularity of the power reserve and the ability to contribute to frequency control.