CRISSCROSS-SWITCHED MULTILEVEL INVERTER WITHCASCADED SEMI-HALF-BRIDGE ARCHITECTURE

Abstract

This research presents a novel multilevel inverter (MLI) architecture that utilizes a crisscross switching structure with semi-half-bridge cascaded cells. This layout optimizes the power components, reduces switching losses, and boosts the quality of the output waveform. By linking semi-half-bridge units in a flexible manner, this design reduces the amount of active switches and DC sources needed by conventional cascaded H-bridge inverters. The power quality is improved by crisscross switching because it lowers harmonic distortion in the output voltage and changes the voltage levels across cells. In addition to lowering EMI, this approach simplifies the use of gate drivers. We model and simulate the system with MATLAB/Simulink and do a Total Harmonic Distortion (THD) study to ensure the proposed method works. Medium to high power applications, such as electric propulsion, smart grid integration, and renewable energy systems, are well-suited to the architecture.