Corrección de simetría de corrientes en redes eléctricas de distribución mediante óptima conexión de transformadores monofásicos empleando búsqueda exhaustiva

Abstract

This document presents a reconnection model of single-phase transformers (SPT) along a real three-phase network of a predominant distribution system of residential loads, obtaining a minimum percentage of current imbalance, by means of a combination of the loads between the three phases of the system, carried out by an optimization model in the Matlab computer program together with GAMS, in which the exhaustive search method is used. This optimization model allows to distribute the SPT in the three phases of the system (A, B, C) in a balanced way, minimizing the difference between the power assumed by each line, then, if the loads are distributed symmetrically, the same will happen with the currents in such a way that the objective of reducing the current balance percentage is fulfilled. To demonstrate the results obtained, the simulation is performed in the DIgSILENT PowerFactory computer program from which current values are obtained with the current connection of the SPT and compared with the values obtained after having applied the proposed reconnection.