Decentralized power management of PV/battery hybrid units in Islanded Microgrids SYSTEMS



In this paper, a control strategy is developed

to achieve fully autonomous power management of multiple

PV/battery hybrid units in islanded microgrids. Also, the developed strategy has the ability to autonomously coordinate with dispatchable droop controlled units. The power supplied by the hybrid units is autonomously determined based on the available PV power from all hybrid units, the total generation capacity of the available dispatchable units, the total load demand, and the SOC of all batteries in the microgrid. In addition to maintaining the power balance in the microgrid, the decentralized coordination scheme prioritizes charging the microgrid batteries with lower SOC. Also, the control strategy enables the hybrid units to import power from other units to support charging their batteries.

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