Contribution to frequency control by a PMSG wind turbine in a Diesel-Wind Turbine microgrid for rural electrification

The electrification of rural areas in developing countries and beyond is attracting particular interest in the last years. In this paper a Diesel-Wind Turbine microgrid for rural electrification is examined. A PMSG Wind Turbine model has been developed in RTDS´s dedicated software RSCAD and its performance has been tested in a Power Hardware-in-the-loop environment. Three different operation strategies for the wind generator have been studied. In the first method the wind generator does not contribute to frequency control. In the second method the wind generator contributes to the inertial response of the system and in the final method pitch control deloading strategy is applied. The network under study is a rural Low Voltage grid that consists of one synchronous generator, constant and variable loads and finally a PMSG wind turbine.