Distributed Energy Management of Grid Connected PV-Prosumers Using Consensus Protocol

This article presents a fully distributed energy management solution for grid-connected prosumers having photovoltaic (PV) system and distributed generators (DG). The prosumers try to supply their energy demands with the locally available resources while excess energy is shared with the utility grid. Moreover, the prosumers buy the electric power from the grid in case of deficiency. The optimization problem is modeled as a social welfare maximization scheme based on consensus protocol. The proposed approach is fully distributed and requires only information about local power mismatch and incremental cost from the adjacent neighborhood. To validate the proposed algorithm simulation is performed on a network of five prosumers for 24 hours of data of forecasted load and PV energy. Furthermore, a convergence speed analysis and scalability test of the proposed algorithm is also performed to justify its effectiveness for practical systems.

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