Droop Control for Power Sharing and Voltage and Frequency Regulation in Parallel Distributed Generations on AC Microgrid

摘要

This work proposes the implementation of a droop control methodology (P-ω and Q-E) for active and reactive power sharing, to stabilizing an isolated microgrid, ie ensuring nominal voltage and frequency. The system is composed basically of two DG units, a grid former converter, a local load and a grid model. Is an objective either, show an enhanced active and reactive power sharing for effective regulation of voltage and frequency, under load changes conditions when the microgrid is islanded. These topologies controller are implemented in a just one Distributed Generation, the Grid Former Converter (GFC), that characterize how a contribution this work in comparison another research, that applied the same system control in all converter unit in parallel. Thus, simulation results demonstrate the operation of this system and can be used as validation of the proposed control strategies.