D.  Karthikeyan, R.  Palanisamy, K.  Selvakumar, D.  Selvabharathi, K.  Vijayakumar, 
    Implementation of Single Phase Cascaded H-Bridge Inverter System,
    Journal of Engineering and Applied Sciences,
    Volume 13,Issue 21,
    2018,
    Pages 8993-8998,
    ISSN 1816-949x,
    jeasci.2018.8993.8998,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2018.8993.8998)
    Abstract: This study presents a 5-level single phase cascaded H-bridge multilevel inverter where in two
H-bridges are in series and there are separate DC voltage source for each H-bridge. The modulation technique
we have used is sinusoidal pulse width modulation because it helps in reducing the unwanted harmonics. A
single phase cascaded H-bridge multilevel inverter model is presented in this study and performance of this
inverter is investigated through various simulation studies using MATLAB/Simulink. The simulation result
shows the effective control to obtain minimum THD performance. Potential drawbacks of conventional inverters
are eliminated here.
    Keywords: Cascaded H-bridge inverter;Sinusoidal Pulse Width Modulation (SPWM);Total Harmonic
Distortion (THD);DC voltage;inverters;pulse