Semicentralized Power Sharing Scheme for Islanded Parallel-Connected Inverters

This paper presents a new control scheme that permits flexible power sharing between parallel inverters connected to microgrid operating in an island mode. The presented processes the information of active and reactive output powers from all central controller calculates set points for each inverter, based on desired ratios their powers. These necessitate adjustment inverters’ terminal voltages (phase magnitude) relative voltage at common AC bus. proposed power-sharing uses robust low bandwidth-based communication achieve precision fast dynamic response, minimum circulating current inverters, adapting changes line impedance, even under transfer delays. has been validated using MATLAB/Simulink simulation experimental results obtained prototype three three-phase number loads. emphasize superiority topology performance different loads (25% 100%), impedances, grid conditions, delay.