Efficient implementation of MPPT and comparison of converter for variable load Solar PV system

Increase in renewable energy utilization has widened the scope of research in maximizing the efficiency of solar photovoltaic (PV) manufacturing technology, but still the achieved conversion efficiency of solar PV module is not more than 25%. Thus to maximize their operating efficiency and to compete with per unit costs of conventional power, there is need of an efficient and robust maximum power point (MPP) tracking controller. This manuscript studies the comparative analysis of boost, buck-boost and cuk converter for variable loads. Performance of different converters implementing MPPT algorithms are investigated using MATLAB/SIMULINK. Incremental conductance technique incorporated for enhancing the output power of solar PV ensures an efficiency of 95%.