Sistema de condicionamento de energia a partir de fontes CC: uma proposta de projeto e controle

Abstract

In the current context of sustainability, it is noticed increasing interest and need fordistributed power generation through renewable sources such as wind, photovoltaics and fuel cells. In low-power generation systems, this energy, in turn, is typicallystored in batteries so that they can be subsequently used in several applications, ranging from power appliances to electronic devices recharging. This work aims thestudy, design and implementation of a low-power electricity conditioning system to conduct the adequacy of a 24 V DC source (such as 2 batteries connected in series) into a voltage signal that can be used in devices that consume energy at 127 Vrms AC/ 60 Hz. For this, the system will contain a Flyback converter, responsible for elevating the continuous voltage signal to a compatible level for the purpose; and a Full-Bridge Inverter, responsible for the reversal of this sign considering the desired frequency. The work also aims the design and implementation of a closed loopcontrol system in order to obtain an output voltage signal with low level of fluctuation, given the possibility of variation of load and / or input voltage