Publication

Abstract : In the recent decades Multilevel inverters have been attracted the wide interest of researcher as well as industry for high-power and medium-voltage control. Additionally, they can combine switched waveforms with lower levels of harmonic distortion compared with the conventional two-level converter. The multilevel model is used to decrease the harmonic distortion in the output waveform without decreasing the inverter output power. This paper presents the most important popular topologies like diode-clamped or neutral point clamped inverter, flying capacitor or capacitor-clamped inverter, and cascaded H bridge multilevel inverter. Most commonly used modulation technique such as Sinusoidal, Modified and Random Pulse Width Modulation, Third harmonic injection, Space Vector Pulse Width Modulation Technique (SVPWM), Delta Modulation, Selective Harmonic Elimination (SHE) and Wavelet Modulation Technique (WM) are discussed and a review on CCHMLI with most frequently used control techniques such as SPWM and SHE methods are discussed enabling improvement in technology in both industry and research areas