Reduced Switch Topology for Multilevel Inverter in Solar PV Systems

Multilevel inverters are the new switching topologieswhere industrialist and researchers showimmense effort in work. While PV technology is also emerging as more reliable renewable energy resource for harnessing energy which shares hand to supply demand with existing one. In this paper work a new type of topology for MLIin solar PV system with the number of power electronic switched reduced for its operation.The proposed topology with the statedsinusoidal-pulse width modulation (SPWM) technique reduces the highfrequency voltage transitions in the terminal voltages at output. As the levels in the multilevel inverter increases the THD at the output goes to lower value. Thus the performance of inverter used in any application improves significantly.The proposed approach is comprehensivelysimulated in MATLAB/Simulink software environment and is validatedwith output obtained via simulationresults and THD analysisis conducted duringthe operation of the converter.