Papers › Hierarchically Coordinated Energy Management for A Regional Multi-microgrid Community

Hierarchically Coordinated Energy Management for A Regional Multi-microgrid Community

7 Feb 2021arXiv:2102.03745links table onlyarchive 2025-07-28

Chengquan Ju

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This paper proposes a novel hierarchically coordinated energy management system (EMS) for a regional community (e.g., residential area, campus, industrial park, etc.) comprising multiple small-scale microgrids (MGs) (e.g., houses, buildings, etc.). It aims to minimize the total operational cost of the MG community and maximize the individual benefit of each MG simultaneously. At the local level inside each MG, with the detailed modeling of various energy resources including photovoltaics (PVs), energy storages (ESs), electric vehicles (EVs) and dispatchable loads, the individual optimization problem is formulated as a mixed-integer linear program (MILP). Local EMSs makes power dispatch decisions for all the controllable units to minimize the operational cost in individual MGs. At the community level, a novel pairing algorithm is proposed to explicitly find the MG pairings with surplus and deficit. The community-level EMS employs the pairing algorithm to determine specific power exchanges among MGs and minimizes the energy transactions with the upstream grid. The operational cost of each individual MG is further reduced by additional economic benefits procured by the community-level EMS. The proposed method has distinguishing advantages on modeling generality, computational complexity and privacy protection, and its performance is verified by the simulation results.

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