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The frequency response that can be provided by Doubly Fed Induction Generators (DFIG) and Full Power Converters (FPC) based wind turbines during the first 30 sec after a frequency event was investigated. A simplified model, which can be used for frequency studies on a single bus equivalent of the power system, was developed. Studies were carried out on the present and projected 2020 Great Britain power systems. The frequency deviation of the GB system with and without the frequency response of the wind turbines was simulated. It was shown that variable speed wind turbines with suitable controls can make an important contribution to frequency response.
Ekanayake et al. (Mon,) studied this question.