Residential microgrids (MGs) may host a large number of Distributed EnergyResources (DERs). The strategy that maximizes the revenue for each individualDER is the one in which the DER operates at capacity, injecting all availablepower into the grid. However, when the DER penetration is high and theconsumption low, this strategy may lead to power surplus that causes voltageincrease over recommended limits. In order to create incentives for the DER tooperate below capacity, we propose a proportional-fairness control strategy inwhich (i) a subset of DERs decrease their own power output, sacrificing theindividual revenue, and (ii) the DERs in the subset are dynamically selectedbased on the record of their control history. The trustworthy implementation ofthe scheme is carried out through a custom-designed blockchain mechanism thatmaintains a distributed database trusted by all DERs. In particular, theblockchain is used to stipulate and store a smart contract that enforcesproportional fairness. The simulation results verify the potential of theproposed framework.
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