Enhancement DC Microgrid Power Stability with a Centralized

The residential electricity load increases every year according to the increasing number of residents. But the utility grid that uses fossil sources has not been able to serve the increasing residential electricity load. In this study, a centralized DC microgrid method is proposed to supply residential premises. DC microgrid uses renewable energy sources. The method used is a centralized system with a battery unit storage system. The excess energy of each PV installed on the roof of the residence is stored in the battery. If one of the PVs in the residence is disconnected, the battery will supply energy to the residence. The results of the study show that the centralized load system only requires total load data, while in the distributed load system the battery is used to meet the peak load demand of each load. Therefore, the cost of a distributed load system is much greater.