Simulation of Traditional and Proposed Switched Inductor Buck Boost Converter Connected with Photovoltaic Module by Simulink / Matlab for Analysis, Comparison and Results [ ]


The role of power electronics converter is very important in the photovoltaic (PV) systems. The inductor of traditional buck boost converter is replaced by switched inductor circuit consists of two inductor and three diodes. Buck Boost converter is used to boost the photovoltaic voltage at the required high level to extract the maximum power from the photovoltaic module. The simulation of the photovoltaic array is realized with SIMULINK block. The temperature and the irradiance are specified. The Simulink model uses a current source, voltage source and the value of the resistance in series and parallel of the PV. The number of modules in series and parallel are set. The result is used for the Simulink block as a current source to obtain the voltage and current delivered from PV. It is observed observed that the buck boost converter is able to track the maximum power of PV by variation of its duty cycle. Increasing the load resistance PV still deliver power near maximum point. At the load side the output voltage is increased depends on the load conditions. The PV module gives the maximum power, voltage and current independent of the load.