Análise do impacto de transitórios em redes de distribuição sobre sistemas fotovoltaicos

Abstract

Distributed generation has grown every year as a way of diversifying the energy matrix, with photovoltaic energy being one of the most promising as it is a clean energy that is easy to use. Small and medium-sized photovoltaic plants have been built both in urban centers for direct use at the generation site, as well as in more distant regions, in which the energy produced is transferred to the existing electricity grid of local concessionaires. The growth of this type of generation plant, interconnected to existing grids, requires studies to assess disturbances that may affect the grid and, consequently, the photovoltaic systems. In this aspect, this work aims to implement a complete photovoltaic generation system model and an electrical distribution network in the ATP R software, through its ATPDRAW graphical interface, in order to analyze the behavior of these systems, against transient disturbances that affect its operation in the electrical network. The software used has great advantage in the implementation and simulation of electrical events, through existing components, or the creation of new ones through mathematical equations. With that, through mathematical models, were implemented through equations, components that represent the real characteristics, for the operation of the system as a whole. The application of certain elements for the protection of photovoltaic systems from electrical disturbances caused in the distribution network was thus observed and validated.