Simulation of Photovoltaic System Connected With Full Bridge Inverter Using Matlab / Simulink

Abstract

When sunlight shines on a PV cell, the absorbed light produces electricity. Though PV technologies use both direct and dispersed sunlight to create electricity, harnessing efficiency is 68% eventually against the claim of 85% by the various manufacturers worldwide. Power Electronics Interface are incorporated with Photovoltaic (PV) System to intensify the efficiency of the PV system and undoubtedly we have reached to the goalmouth. There are two stages where power electronics converter are used. First DC-DC converter stage in which lower level PV voltage is boosted-up at the required higher level; and second DC-AC inverter stage in which increased DC link voltage is efficiently converted into AC. Purpose of this paper is to elaborate the Full-Bridge inverter used in PV System and switching schemes adopted for the operation and to realize the best switching scheme. Simulation results are taken at various stages to visualize the effect of interface. For whole PV system simulation, PV module is connected to the converter system. The output of the Buck Boost converter is connected to the single-phase inverter and the inverter output is fed to the AC grid.