Distributed generation control for frequency support

This paper investigates a new technique that could be applied to control distributed generation units in an islanded distribution network to support frequency. The frequency control technique relies on slow communication in order to establish the units that are in operation. The magnitude of the disturbance is determined using the swing equation, thus obtaining this way a more efficient system operation during emergency conditions. Through optimisation, using the generators with spinning reserve the frequency could be maintained at acceptable limits.