Impact of Input Capacitors in Boost Converters on Stability and Maximum Power Point Tracking in PV systems

The solar photovoltaic (PV) energy has grown sharply in recent decades. As the efficiency of PV systems is dependent on the power electronic converter as well as PV cells efficiency, this study will investigate the impact of input capacitors of Boost converters on maximum power point tracking and stability. Small-signal modeling of the PV system is presented along with calculation of the transfer function of the panel’s voltage to the generated current of the PV panels. The results of the simulations using MATLAB-Simulink verify the accuracy of modeling and the effectiveness of the proposed method to determine Boost converter elements.