SILVA JÚNIOR, J. F.; http://lattes.cnpq.br/7219143587344039; SILVA JÚNIOR, José Fidelis da.
Resumo:
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.