Performance evaluation of single ended primary inductance converter for photo voltaic applications

This paper aims at the discussion of the performance parameters evaluation of Non isolated Single Ended Primary Inductance DC-DC Converter over Buck Boost and Cuk type converter, whose primary role in photovoltaic power generation is to maintain the output voltage constant irrespective of changes in the input, with improved efficiency and less input current ripple. The paper includes dynamic modeling and simulation of a photovoltaic cell under varying insolation and changes in temperature along with the modeling of the three topologies mentioned above taking the unregulated voltage from the pv cell and their performance parameters are being compared to choose the better converter topology for solar power generation system. For modeling the pv cell the single diode equivalent diagram is considered simulated using MATLAB / Simulink platform to obtain PV and IV curves of solar cell with variable temperature and variable irradiance. Also the dc-dc converters are modeled in MATLAB, and the simulation results are compared.