Application de la stratégie VOHEPWM à un système onduleur connecté au réseau

摘要

This work presents the application of vector optimized harmonic elimination pulse width modulation (VOHEPWM) strategy to a system comprised of three single-phase full bridge inverters connected to the grid and powered by three DC voltage sources in order to have a reduced THD and almost unity power factor. For evaluating the phase angle of the grid voltage, controlling the current and injecting maximum power, the PLL and Watt-Var controls are employed. The obtained simulation results are presented and analyzed.