Simulation and Performance Analysis of a Novel Seven-Level Inverter with DC-DC Converter for Photovoltaic System

Dr.R.Seyezhai, P.Vaishnavi

This paper deals with simulation of PV based single-phase seven level inverter employing maximum power point tracking algorithm. Incremental conductance (INC)is employed in this work  because it has high tracking accuracy at steady state and good adaptability to the rapidly changing atmosphere. A novel dual carrier PWM is employed for the proposed inverter. A detailed study of PV based seven level inverter is carried out in MATLAB/SIMULINK and the performance parameters such as crest factor, peak to average ratio, weighted THD, harmonic spread factor and Distortion factor of the proposed inverter are computed and the results are verified.