Power Loss Analysis Of Modified 9-Level Reduced Switch Symmetrical Inverter

Abstract

Inverters convert direct current or battery power into an alternating current. A multilevel inverter is more powerful than a conventional inverter. Multilevel Inverter has been developed to handle high and medium voltage applications. Multilevel Inverters are commercially used. Conventional Inverter produces a square waveform as output. Multilevel Inverters are used to produce almost equal to a sinusoidal waveform. Compared to the conventional inverter, the 9-level inverter has less harmonic distortion, lower electromagnetic interference, larger DC link voltages, significantly better output power quality, Minimum switching losses, etc. Multilevel Inverters use a reduced number of switches and generate output nearly sinusoidal output. This method uses ten switches to produce 9 levels of output. As this method requires less number of switches this reduces the complexity of the circuit. Based on the observational values like rms voltage, rms current, average voltage, and average current in MATLAB simulations, power loss analysis and efficiency of modified 9-level reduced switch symmetrical inverter parameters are analyzed.