Sistema de conexão e supervisão de painéis solares em Microgrid de corrente contínua

Abstract

The scarcity of natural resources and the search for alternative energy sources promote a rapid change in the global energy matrix. Among the renewable energy sources solar energy is the most promising, since it has the highest growth rate at present. Researchers around the world have sought ways of enabling their progress, developing technologies with greater efficiency and lower cost. As a contribution to the advancement of this technology, this document proposes the development of a microgrid in continuos current connecting the photovoltaic panels through a device with tracking strategy developed based on the method perturbation and observation that will advise the electronic circuit power and a wireless communication system for monitoring of individual generation. Simulations have been developed for to choice of connection topology and comparison between the proposed and traditional control method, assigning different input levels and graphically checking the output responses. With the design and development of the circuits, firmware and printed circuit board of the proposed device, it was possible to carry out experiments to verify its capacity of energy conversion and to verify responses of control methods mentioned above, placing it as an viable option and adding a small contribution to technologies of embedded system in the of renewable energy field.