Design of Symmetric and Asymmetric Multilevel Inverter Topology with different Pulse Width Modulation Scheme

Abstract

ABSTRACT newlineMultilevel inverter technology for average and higher power newlineindustrialized applications has become popular in recent years. newlineCascaded Half Bridge, Neutral spot Clamped and Flying Capacitor newlineare three primary multilevel inverters topography. Cascaded Half newlineBridge has become popular for its modular nature, easy control, newlinedurability, availability and lack of problem with capacitor imbalance. newlineOver traditional 2-level inverters, these inverters put forward some newlineinherent reward. One of the main advantages is the excellent of the ac newlineoutput voltage of the multilevel inverters. New symmetric and newlineasymmetric multilevel inverter topologies are suggested in this newlineresearch. In this investigation we concentrate on this topology which newlineis series relation of several Half-Bridge cells with even and newlineimbalanced magnitude of dc sources recognized as symmetric and newlineasymmetric arrangement. newlineThe appearance of preferred topologies is evaluated on the basis of newlinethe three significant performance (performance) indexes that are newlinefundamental component of Vrms and percent THD of AC output newlinevoltage acquired among unipolar and bipolar triangular carrier signal newlinewave changeless amplitude multi carrier PWM approach with newlinesinusoidal reference wave. The simulation is done with MATLAB newlinesoftware topologies. newline newline