Sistemas fotovoltaicos de geração distribuída de único e dois estágios em conexão com a rede de distribuição de energia elétrica

Abstract

The influence of humans on the environment and the impacts generated, combined with the exponential growth of electricity demand, are generating increasingly discussions about a gradual change in the traditional scenario of electricity generation, where distributed generation (DG) is gaining increasingly space. One of the most used methodologies for obtaining a GD is the connection of energy extracted from alternative sources in parallel on a bus DC through the use of DC-DC converters and DC-AC converter for grid-connection, and for maximizing the efficiency of these sources are used MPPT algorithms. Thus, this work presents the development of single and two-stage gridconnected distributed generation systems, focusing on photovoltaics, both implemented and modeled in Matlab/Simulink® environment, beyond implementation of control systems, for the use of all energy generated by the PV array and the current injection in grid with power quality indices. The results obtained in the simulation of both DG systems demonstrate the functionality of the system as a whole, which injected active and reactive power in grid with low THD.