Simulation of parallel-loaded resonant inverter for photovoltaic grid connected

Abstract

In this paper, a simulation of parallel-loaded resonant inverter for photovoltaic (PV) grid connected is presented. The output of the resonant inverter is parallel-connected with transformer, which will control the voltage levels and also could provide isolation. The sinusoidal pulse width modulation (SPWM) technique was used to produce pure sinusoidal waves of voltage and current output. The result of simulations show that the developed model had the capability to minimize the switching loss, prevent shoot-through and prolong the lifetime of power switches. The result for the 500-Watt single-phase inverter grid connected design produce less than 3% of THD.