Comparison of DC-DC converters for solar power conversion system

This paper covers the comparison between four different DC-DC converters for solar power conversion. The four converters are buck converter, buckboost converter, boost converter, and noninverting buck-boost converter. An maximum power point tracking (MPPT) algorithm is designed to calculate battery voltage, current of photovoltaic (PV) array, the voltage of PV array, power of PV array, output power. It is observed that the non-inverting buckboost converter is the finest converter for solar power conversion. The final circuit design has the results of 12.2 V battery voltage, 0.31 A current of PV array, 34 V voltage of PV array, 23 mW power of PV panel, and 21.8 mW of output power. The efficiency of this system is nearly 95%. All four circuits are simulated in MATLAB/Simulink R2020b