Coordenação da proteção de um sistema de distribuição de energia elétrica em Uberlândia - MG usando BDGD, QGIS e OpenDSS

Abstract

An electrical power system, be it for generation, transformation, transmission, or distribution, is designed to ensure continuity, reliability, and supply flexibility. For this, it is crucial to have a reliable protection system. In a distribution power system, one of the most used and crucial equipment is the reclosers. This equipment must comply with the regulations and are coor dinated with each other. For this work, a real network was analyzed; the ULAE714 feeder belongs to Substation Uberlândia 7 at the city of Uberlândia, Minas Gerais. The public data were extracted from the Geographic Database of the Cemig energy concessionaire after reques ting ANEEL. Also, the OpenDSS software was used to simulate single-phase, phase-phase, and three-phase short-circuits in the system’s node. The coordination of reclosers installed on the network, calculating the time dials correctly, also has been performed. In the end, consistent values in comparison with the literature were found by the author. With all the steps, it was possible to do studies involving reclosers and using tools such as QGIS and OpenDSS software, which are very useful to several companies.