Comparitive Analysis of Fuzzy Based MPPT for Boost and SEPIC Converter Topologies for PV Application

Abstract

This paper proposes the Maximum Power Point Tracking based on Fuzzy logic control for PV System.MPPT is required to extract maximum power corresponding to specific operating point. The output power of PV System is depends on weather conditions i.e. solar irradiation and atmospheric temperature. In this work PV System model is implemented in MATLAB at different irradiation and constant atmospheric temperature with different converter topology such as Boost and SEPIC. A Fuzzy Logic control (FLC) based MPPT technique proposed here, shows improvement in the efficiency of a PV based energy system and further comparison is made between Boost and SEPIC Converter under variable atmospheric conditions and temperature to validate the results.