Bidirectional Buck-Boost Quadratic Converter Using Fuzzy Controller for Distributed Generation Systems

Abstract

The availability of Fossil fuelsare reducing nowadays and consequences of using them have made it necessary toutilize clean and sustainable energy sources. The distribution generating systems for nonconventional and renewable energy producing sources increases gives the direction of coming generating systems. These electronics systems containing electronic based bidirectional converters as a network that interacts the electrochemical storage systems and DC voltage buses. Bidirectional converters involve energy transfers between two sources in both directions with in a single circuit. The proposed bidirectional quadratic converter is contained in four switches, two inductors, and a capacitor. The converter voltage gain is much greater than the conventional bidirectional buck-boost converter in both bucked and boosts modes of operation. The converter gives wide conversion range and it has reduced boosting or bucking ripple and the control circuitry is simple. Through simulation results the output of the proposed quadratic buck-boost converter is confirmed.