RETRACTED: Generalized control for distributed energy inverter in community microgrid system: Off-grid and grid-connected operation.

The article focuses on the development and experimental validation of a generalized control method for single-phase grid-forming (GFM) inverters in community microgrid systems, enabling flexible operation in both grid-connected and islanding modes with stable mode transitions. It addresses challenges posed by high penetration of distributed energy resources (DERs) and the need for smooth disconnection/reconnection to the utility grid, incorporating advanced functions such as voltage/frequency regulation, ride-through, and droop control. The proposed method extends existing three-phase GFM inverter controls to single-phase applications, integrating voltage and phase angle synchronization to minimize inrush currents and voltages during mode changes. Experimental results on a 10 kW prototype demonstrate improved transient response, lower harmonic distortion, and reduced inrush effects compared to a reference model predictive control method, confirming its suitability for enhancing reliability and stability in community microgrids.