IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03.
DOI: 10.1109/pesc.2003.1218146
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This paper introduces a new control method and proportional PWM modulation of the cascaded H-bridge multilevel converter for grid-connected photovoltaic systems. This control makes each H-bridge module supply different power levels, allowing therefore for each module an independent maximum power point tracking of the corresponding photovoltaic array.