Design, Modeling and Performance Investigation of GC PVGS

Abstract

This paper proposes a new topology for the power injection system that is based on the parallel association of two voltage source inverters: one is operated using a quasi-square voltage waveform strategy and the other operates with a PWM based strategy. The aim of this topology is that the quasi-square inverter injects the power from the photovoltaic generation system and the PWM inverter controls the current quality. The proposal optimizes the system design, permitting reduction of system losses and an increase of the energy injected into the grid.

Keywords: quasi square wave inverter, pulse width Modulation inverter, photo voltaic power system, modulation Index (M).