A Hierarchical Control of Supercapacitor and Microsources in Islanded DC Microgrids

This paper proposes a hierarchical control approach for SuperCapacitor (SC) energy storage and microsources in islanded DC microgrids. It takes into account microsources’ dynamic steady-state limitations. The proposed relies on an architecture presented the SC’s interfaces with bus. In architecture, interface bus through buck converters. Moreover, SC bi-directional converter. instantaneous loads currents are measured employed secondary to calculate reference primary control, we run converters as current sources. converter is regulate voltage. generic; meaning that it can be any microgrid. Without loss of generality, prove its effectiveness, utilized Low Voltage (LVDC) microgrid this paper. Analysis, design, simulations, experimental verifications LVDC results confirm that, by employing approach, voltage deviations from 5% restores less than $1~sec$ .