Conversor CC-CA SEPIC paralelo aplicado a sistemas de geração fotovoltaica.

Abstract

The concerns with the climate change and the environment led the electrical grid to change worldwide. The energy from renewable sources play a major role in this context, where photovoltaic and wind energy systems are leading. Grid-connected photovoltaic systems are being widely used nowadays, since the technology is becoming increasingly popular, and its price is very attractive to the general population. In order to successfully connect to the utility grid, these systems need an efficient power electronics converter, responsible to transform the DC energy into AC energy. In this article, a paralleled SEPIC inverter is proposed for small grid-connected photovoltaic systems. The circuit operation is detailed, the steady-state analysis is performed to design the circuit components. Simulations were developed in order to obtain the output waveforms, and the performance parameters.