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Photovoltaic (PV) energy gains popularity, due to increasing demand of renewable energy sources. This paper presents a module integrated grid tied microinverter for PV system. The microinverter delivers solar energy from a PV panel to the utility grid. It extracts maximum power from each PV module and harvest more power to the grid. In this paper, the microinverter, based on interleaved flyback converter and active clamped technique to reduce voltage spike, are presented. Simulation of PV panel, active clamped interleaved flyback converter and full bridge inverter are performed using MATLAB/SIMULINK and the results are discussed. Comparison between microinverter and string inverter is presented with respect to power harvesting at partial shading.

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