Power Sharing And Management Through Power Based Droop Control in DC microgrid

The substantial increase in the expansion of renewable energy sources (RES) and gigantic concern in ecological transformation throughout the whole world fabricates the evolution of distributed energy resources (DERs). The cluster of DERs units contributing power to load and expansion of various dc loads at distribution level led to the evolvement of dc microgrid. The power electronic converters play a vital role in interfacing DERs with the load. Efficient interfacing can properly be achieved by operating the dc-dc converter with powerful control techniques. Droop control is an uppermost efficacious decentralized control. A closed loop control strategy based on droop characteristic for accurate power proration in standalone as well as grid connected dc microgrid is implemented in this paper. The voltage reference magnitude is computed according to the power based droop control approach. The structure of the voltage as well as the current controller is executed to supervise the inductor current and capacitor voltage at the dc-dc converter output. MATLAB/ SIMULINK atmosphere is utilized to authenticate the presented paradigm of dc microgrid.