Comparative Analysis of Voltage Multiplier Cell Based Non-Isolated Step-Up Converters

Abstract

High gain dc-dc converters are widely employed in applications like electric vehicles and renewable energy systems; among them, cost-effective voltage multiplier cell (VMC) based converters are popular. This paper aims to compare the VMC based converters having the gain more than classical boost type converter in terms of various performance indices namely -output voltage ripples, input current ripples, cost, and voltage, current stress of all components, and efficiency of the converter. Further, the Markov model approach is adopted to evaluate the reliability of high gain converters and the converters are compared in terms of mean time to failure. Finally, the merits and demerits of the converters are also discussed.