Photovoltaic System Based On The PUC9 Inverter

A new competitive photovoltaic system based on the PUC9 converter is presented in this paper. It uses a reduced count of semiconductors and passive components. These advantages are performed using a control technique which allows the balancing of capacitors voltages in open loop operation. The proposed system allows a power conversion with high energetic efficiency which is due to the reduced harmonics impact of the PUC9 inverter. The Perturb & Observe algorithm is performed to extract the maximum power of the PV panel. The whole photovoltaic system is based on the association of this MPPT technique and the proposed balancing technique. Consequently, the load voltage and current are nearly sinusoidal. Therefore, there is no need for additional investment in any filters.