Análise e planejamento para uma melhor recomposição de uma subestação de distribuição de energia

Abstract

Brazil is one of the 10 largest energy producers in the world, it has an extensive energy grid connected through the National Interconnected System (SIN). Despite the extensive power lines that cross the country, the northern region of the country has few transmission lines and, in cases of emergency, it takes a long time and maintenance to reactivate a substation. In this sense, it is possible that states in the region face calamities caused by electrical problems, as happened in the state of Amapá in 2020, leaving the state with electricity through a rotation for 22 days. Therefore, the present work aims to study the recovery time of a substation in case of outbreaks that damage its structure and cause blackout in the region served. To calculate this time, important cities in Tocantins, such as Paraíso do Tocantins, were taken into account, as well as cities further away from the capital Palmas, such as Bielândia. In addition to the travel time of the maintenance team and a mobile substation, the type of road pavement and general conditions of the road were taken into account. Finally, the possibility of each substation having a spare transformer is also encouraged, which would make the recovery time shorter, the repair time could be extended, so that the maintenance team could carry out the repairs calmly and not harm the region served. However, this makes the operation of the concessionaire more expensive, and often financially and operationally unfeasible.