Power Quality Improvement With in-built DFIG Converters In PV/Wind/Battery based Microgrid

This paper presents the power quality analysis of microgrid. Here, three various system of micro-grid are taken namely, PV-Battery system, DFIG system, Hybrid (PV, Wind, and Battery) system to show the importance of DFIG and its in-built converters. All the three systems have been modelled and simulated separately. The THD of such systems have been evaluated. In Hybrid System, DFIG Grid Side Converter (GSC) has been also utilized as an inverter of PV System which reduced the cost of one converter as well as improves the power quality. Here power quality is improved by multi-level inverter (MLI) and in-built DFIG Converter.