Voltage Balancing in Diode Clamped Multilevel Inverter Using Sinusoidal PWM

  ijett-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2013 by IJETT Journal
Volume-6 Number-2
Year of Publication : 2013
Authors : S.Shalini


S.Shalini. "Voltage Balancing in Diode Clamped Multilevel Inverter Using Sinusoidal PWM". International Journal of Engineering Trends and Technology (IJETT). V6(2):97-103 Dec 2013. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group


Multilevel inverters offer several advantages compared to the conventional 3-phase bridge inverter in terms of lower dv/dt stresses, lower electromagnetic compatibility, smaller rating and better output features. This project presents a 9-level diode Clamped inverter using Sinusoidal pulse width Modulation techniques as the control strategies. The algorithm has been developed within the carrier-based PWM framework to facilitate its implementation in diode clamped converters with three or more levels. A simulation model of 9-level DCMI has been designed and developed. The results obtained from the simulation model have been compared with the 3-level and 5-level diode clamped inverter. By increasing the level of inverter, effective balancing in line voltage and reduced THD is obtained.


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