Modelagem de um sistema de geração distribuída no programa ANAFAS e sua coordenação das proteções de sobrecorrente com o ponto de conexão do cliente

Abstract

This paper presents the study involving the modeling of a distributed generation system and its coordination of overcurrent protections. A literature review was conducted in order to establish the theoretical concepts necessary for the development of the theme, in conjunction with an analysis of the short-circuit behavior of the elements that make up the photovoltaic system, including the transformers at the point of connection to the distribution network. Having all the necessary information, the EditCepel software was used for modeling the system and the ANAFAS software for the short-circuit simulations. Based on the simulated current values, the coordination of the overcurrent protections at the connection point was adjusted in conjunction with the overcurrent protections upstream of the connection point. The validation of the coordination was performed through the analysis of the time versus current curves, using the equations provided in the IEC standard with the help of the Microsoft Excel program.