Energy Management System of DC Microgrid in Grid-Connected and Stand-Alone Modes: Control, Operation and Experimental Validation

This paper proposes an energy management system (EMS) of direct current (DC) microgrid. In order to implement the proposed EMS, control and operation method EMS is presented in this work. While most studies have individually examined grid-connected mode used building stand-alone applicable island, allows it be both with 10 modes. determine each not only amount generated power, load state charge (SOC) battery, but also rated power storage (ESS) converter that performs charging discharging operations additionally considered. Thus, various uncertainties may occur actual DC microgrid environment can improved. A laboratory-scale fabricated conduct experimental validation EMS. Experiments were performed for mode, experiment waveforms conversion device are included detail.