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International Journal for Modern Trends in Science and Technology
A three-phase modular cascaded HBM (H-bridge multilevel inverter) for a grid-connected photovoltaic (PV) system is presented in this paper. To maximize the solar energy extraction from the PV panel, an individual maximum power point tracking (MPPT) control scheme is applied, which allows the independent control of each dc-link voltage. PV mismatches may introduce unbalanced power supplied to the three-phase system. To solve this problem, a control scheme with modulation compensation isfatcat:4qk5p56qenay3ofbamp4w6sugy