An LCL power filter for grid connected micrcoinverter

Abstract

This paper proposes to use an LCL filter on two-switch DC-DC flyback microinverter and its voltage for grid connected. With the proposed system, it could possible to improve the quality of the voltage injected into grid and also the quality of outlet power. However, this filter is never used before in the literature for this kind of microinverters. Using Matlab/Simulink software, the results obtained show a better quality of power energy and are in very great conformity with the IEEE1574 standards.