Abstract
Distribution networks are evolving into a more complex structure in terms of planning and operation especially with the high penetration of renewable distributed energy resources (DERs). Flexibility sources and smart strategies are emerging to sustain operational limitations of distribution networks alongside increasing penetration of DERs. In this study, an optimisation-based decision-making mechanism for flexibility procurement from dual sources - battery energy storage systems (BESS) and hydrogen-oriented electrical load - in a Volt-VAr (V/Ar) controlled DER penetrated distribution network structure. Real distribution network dataset is utilised to provide a more realistic analysis. With the addition of a BESS, PV curtailment falls by about 11%. When V/Ar control is added on top of the BESS, the total reduction reaches roughly 65%. The results reveal the considerable impact of each flexibility resource to cope with the operational impacts of DERs on distribution networks.
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