Abstract: This paper proposes a dual boost micro inverter configuration with an efficient and simple Maximum Power Point Tracking (MPPT) technique for eliminating the problems of drift phenomenon. With this scheme, the PV module is connected to a dc-dc converter and a dc-ac inverter stage before being connected to the grid. These two converter stages are tucked in for boosting up the efficiency of the PV panel to around 20 percentages than in the conventional configuration. The solar tracker incorporates a modified Perturb and Observe (P&O) MPPT algorithm for a double check in the efficiency of the overall system. Simulation is provided to validate the proposed configuration.
Keywords: Photovoltaic micro inverter, boost converter, Maximum Power Point Tracking (MPPT), PV panel, single-stage boost conversion, double-stage boost conversion