Evaluation Performance of Seven Level Symmetrical and Asymmetrical Inverters

Any power electronic converter circuit that transforms DC voltage to AC voltage at the necessary output voltage and frequency is called an inverter. Higher Total Harmonic Distortion (THD), lower efficiency, higher dv/dt, and pulsing torque are caused by inverters' traditional practice of only offering two output voltage levels. Many strategies have been put forth to deal with these problems, and multi-level inverters are one successful approach. Depending on the amount of voltage levels that are available at the output, inverters are categorized as either two-level or multi-level. It is possible to create multi-level inverters utilizing cascaded, diode-clamped, and capacitor-clamped inverter topologies. Whereas the cascaded topology—also referred to as symmetrical multi-level inverters—uses several sources of the same value, the diode-clamped and capacitor-clamped topologies only use one source. An extensive analysis of the performance of both symmetrical and asymmetrical inverters is included in this work. The MATLAB Simulink environment is used for the simulation, and the inverters' respective performances are compared