Fuzzy Logic MPPT for Grid Tie Solar Inverter

To extract maximum power from the solar PV system, various maximum power tracking techniques have been developed and tested. This paper presents a smart method for maximum power tracking based on fuzzy logic controller. The proposed system is simulated in MATLAB simulink. Single phase dual stage grid tied solar inverter topology is considered for simulation. Fuzzy logic based Maximum Power Point Tracking) MPPT algorithm is compared with the conventional MPPT (Incremental conductance plus Integral regular) algorithm. Comparative analysis using simulation results are presented. Simulation results show that the fuzzy logic based MPPT algorithm performs better compared to the conventional MPPT method.