Network Reconfiguration for the Optimal Operation of Smart Distribution Systems

This paper introduces a day-ahead networkreconfiguration model for smart distribution systems (DSs) in the presence of renewable distributed generators (DGs) and battery energy storage systems (BESSs). The proposed model aims to determine the optimal day-ahead operational schedule that minimizes two objective functions: the operating cost and the voltage deviations. The minimization of the voltage deviations will result in improvements in the next-day voltage profiles. The operational schedule obtained by the proposed model includes the network reconfiguration schedule, the BESS charging/discharging schedule, and the generation schedule of the dispatchable DGs. The proposed model takes into account the day-ahead forecasted variations in load demands and renewable DGs. The model also considers the maximum number of switching operations for each controlled switch in the network. The proposed model has been tested using a case study of a 33-bus smart DS that included different types of energy resources. The efficacy of the proposed model has been confirmed through a comparison between the model results and the base-case results.