Performance evaluation and hardware implementation of MPPT based photovoltaic system using DC-DC converters

摘要

This paper presents an extensive study of photovoltaic system using three non-isolated DC-DC converters, to extract maximum power. Firstly, a comparative study on different methods of MPPT is carried out and from this comparative analysis it was observed that the Perturb and Observe algorithm provides better results. A model of three basic DC-DC converters (Buck, Boost and Buck-Boost) is implemented using PROTEUS software. Based on simulation results, and further as a novel contribution in this work, a prototype of MPPT based PV system is designed using Perturb and Observe algorithm and Buck-Boost type of DC-DC Converter. Finally the experimental results are demonstrated.