Control of the Four Switch Z-source Three Phase Inverter Integrated in a Photovoltaic system

Abstract

This work aims to study the Z-source four-switch three-phase inverter connected with a PV generator, to improve the performance of the classic inverter. This system is used to feed a power grid. Moreover, this inverter makes sure that both function of the booster chopper and the inverter in one stage. In addition, a space vector pulse-width modulation (SVPWM) control method has been used to control the FSTP Z-source inverter by insertion of shoot-through state with the Z-source network together to achieve the best efficiency and reduce the Total Harmonic Distortion (THD). The MPPT technique is used to obtain optimal power performance of the photovoltaic generator (GPV). The simulation results have been obtained by MATLAB/Simulink Software to validate the proposed study.