Design of hybrid grid-connected inverter for renewable energy generation with power quality conditioning

Abstract

This research paper presents a new model of hybrid grid connected inverter (HGCI) which replaces the use of capacitive-coupled grid connected inverter (CGCI) and inductive-coupled grid connected inverter (IGCI). As CGCI have narrow operation range and IGCI needs more PV panels thus HGCI overcomes the limitations of both inverters by providing wide operation range and less PV panels are required. The proposed model has a three-phase full-bridge DC/AC electrical converter with a thyristors-controlled LC (TCLC) filter to transfer active power and performs reactive power compensation and also harmonic compensation. At the end results, parameter design and performance of HGCI have been verified by MATLAB/Simulink.