Reduced switches multilevel inverter integration with boost converters in photovoltaic system

摘要

Multilevel inverters (MLIs) are developed to meet medium voltage and high power applications in flexible power systems.The conventional configuration of multilevel inverter requires more switches and has limitation to its wide rangeapplication. This paper reports the performed work on 1-phase 7-level reduced switch multilevel inverter (RS MLI) inphotovoltaic (PV) system. RS MLI configuration integration with PV system which uses less number of switching componentsfor specified number of voltage output levels as compared to that of conventional multilevel inverter topology.To performed enhanced operation of PV cells and maximize the solar energy extraction an incremental conductancebased maximum power point tracking scheme is used. To improve the quality of RS MLI output parameters mainly totalharmonic distortion and switching losses, selected harmonic elimination based genetic algorithm method is considerfor control the gating pulse of PV based RS MLI. This work is performed using MATLAB/SIMULINK software.