Harmonics Analysis of Multilevel Inverter using Low & High Switching Frequency Techniques for R and RL load

In the field of Low & Medium-voltage high-power energy conversion schemes, multilevel inverter (MLI) topologies have significantly aided the growth of modern power-electronic devices as an expressive alternative to conventional two-level inverters. This study aims to design a novel 5-level multilevel inverter administered by both low frequencies nearest level control (NLC) with symmetrical, asymmetrical (ANLC) topology and high frequency based advance phase disposition pulse width modulation scheme. The parameters preferred for analysis are % Output THD of both voltage and current, reactive power, true power with power factor, RMS Voltage and current for R & RL load. The critical evaluation of proposed low & high frequency multilevel inverter performance is verified and validated by MATLAB/SIMULINK environment