COMPARATIVE ANALYSIS OF VARIOUS MPPT TECHNIQUES WITH DIFFERENT DC-DC CONVERTERS ON SOLAR PHOTOVOLTAIC SYSTEM

Abstract

The ever increasing demand of energy day by day due to increase in population, urbanization and industrialization requires research and development in the area of non-conventional sources of energy. Conventional sources are being depleted and are estimated to be finished by approximately next sixty years if consumed at the present rate. Therefore considering this point this project focuses on the photovoltaic panel which utilises solar energy to produce electricity and how to attain maximum power from it. The aim of this project is to implement various maximum power point tracking (MPPT) techniques along with various DC-DC converters on a solar photovoltaic panel. The MPPT algorithms are used to control the duty ratio of DC-DC converters on the photovoltaic system in order to get the maximum power point which changes with changing irradiance and temperature. The different algorithms used are Perturb and Observe, Incremental Conductance and Fuzzy Logic Controller with different fuzzy input variables along with different DC-DC converters namely Buck, Boost and Buck-Boost. The power output across the load is compared for all the above cases for each type of DC-DC converter.