Optimal network structure for distribution systems with microgrids

This paper presents a study of distribution system planning assuming a high penetration of distributed generation. Several network structures are developed and discussed by a technical analysis under particular consideration of different configurations of microgrids. It is shown that the operation of microgrids leads to higher system reliability and makes it possible to simplify the structures of the medium-voltage network. Finally, an economical evaluation is given to find the optimal network structure in each power supply scenario