Optimal Sizing and Placement of Distributed Storage in Low Voltage Networks

摘要

This paper proposes a novel algorithm to optimally size and place storage inlow voltage (LV) networks based on a linearized multiperiod optimal power flowmethod which we call forward backward sweep optimal power flow (FBS-OPF). Weshow that this method has good convergence properties, its solution deviatesslightly from the optimum and makes the storage sizing and placement problemtractable for longer investment horizons. We demonstrate the usefulness of ourmethod by assessing the economic viability of distributed and centralizedstorage in LV grids with a high photovoltaic penetration (PV). As a mainresult, we quantify that for the CIGRE LV test grid distributed storageconfigurations are preferable, since they allow for less PV curtailment due togrid constraints.