Análise do chaveamento inteligente de fontes de energia elétrica.

Abstract

Parallel to the constant increase in the search for clean and renewable energy systems, it is necessary, at the same speed, an improvement of systems more compact, efficient and economically viable. Today, systems with multiple sources of energy are already a reality. The advent of these systems is largely due to the ease provided by computer simulation systems, assisting both the modeling and the design of complex systems. In this work, therefore, will be presented computational models of photovoltaic systems, energy accumulators and transmission lines, with MATLAB® software and the Simulink® tool, both from MathWorks®, being applied. The conversion and control system was implemented to feed a load characteristic of a regular residence, as well as for its connection to the electric power network, aiming at monetization of the generated energy. It is possible to monitor the voltage levels of the sources, the discharge rate of the accumulators and the generated or demanded power of the grid. With the use of these tools, the feasibility of the system is analyzed in order to verify that it is possible to maintain the load, to prevent faults in the electrical system and to transfer the energy produced by the panels to the network at 220V, 60 Hz, providing so profits for the owner.