Open AccessAsymmetrical Cascade Multilevel Inverter Design using Modified Level Shift Pulse Width Modulation
Author(s) -
M Revathi M.E,
K.Rama Sudha
Publication year - 2019
Publication title -
international journal of recent technology and engineering
Language(s) - English
Resource type - Journals
ISSN - 2277-3878
DOI - 10.35940/ijrte.b1843.078219
Subject(s) - inverter , total harmonic distortion , pulse width modulation , cascade , voltage , reliability (semiconductor) , h bridge , power (physics) , electronic engineering , modulation (music) , grid tie inverter , computer science , distortion (music) , control theory (sociology) , engineering , electrical engineering , physics , control (management) , maximum power point tracking , acoustics , quantum mechanics , chemical engineering , artificial intelligence , amplifier , cmos
Multi-level inverter technology emerges as extremelysignificant choice in region of high-power medium voltage energycontrol. The multi-level inverter(MLI) generate a quasi sinusoidalvoltage from various level of dc voltage. The proposed inverterdesign for 21 level cascaded MLI inverter by using LevelShifted-Sinusoidal Pulse Width Modulation (LS-SPWM)technique with new carrier and evaluate the Total HarmonicDistortion(THD). The proposed inverter design has the leastnumber of components to lessen the cost and get better reliabilityof converter for medium power applications. The presentedcontrol techniques are applicable to cascaded H-bridge 21 levelinverter to get better voltage regulation and thereby, lead the betterefficiency,reliability and economic improvement. The selectedpattern gave superior result in Total Harmonic distortion.