Smart load distribution in AC µGrid: Operation and control

This paper presents a droop-based control methodology for a cluster of distributed generation systems and loads, accumulated together to form an AC μGrid. It is very important to operate and control μGrid in a way to achieve more reliability, cost benefit and enhanced performance. The main control objective in the proposed control methodology is to provide a plug-and-play functionality to the clusters of μGrids. Therefore, not only they will maintain the terminal voltage constant, but also, there will be an equal load sharing among the energy resources in per unit. This method will offer a high stability to these systems during the interconnection with other μGrids. The proposed methodology has been described analytically and has been verified through simulation.