Performance Investigation of Z-source Fed Cascaded Multilevel Inverter

In the medium and high power industries, three phase multilevel inverters are commonly used to reduce electromagnetic interference (EMI), improve voltage profiles, and increase power capacity. Although several converter topologies for multilayer inverters (MLIs) have been devised, Z-source MLIs are the most common for higher voltage applications. Total harmonic distortion (THD) is reduced by Z-source MLIs, which have good stability and efficacy for diverse electrical power system applications. With multicarrier PWM control approaches, this work seeks to construct a three phase Z-source seven-level cascaded H-bridge (CHB) inverter. In the MATLAB/Simulink software platform, the efficiency of a Z-source CHB inverter with multicarrier PWM control is investigated in shoot through and non-shoot through modes.