alexa High Step-Up ZVT Interleaved Converter with Voltage Doublers Cell for Renewable Energy System | Abstract
ISSN ONLINE(2319-8753)PRINT(2347-6710)

International Journal of Innovative Research in Science, Engineering and Technology
Open Access

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In this paper a novel topology of interleaved ZVS and the concept of built-in transformer voltage doubler cell with PWM boost converter is presented. Now-a-days with the inadequacy in energy and continually enlarging fuel cost, investigation on the renewable energy becomes more and more important. Different traditional converters like boost converters, switched capacitors and coupled inductor based converter tolerate high transient current and conduction losses as the switching frequency is varied. In the proposed system the two implemented tractable variations in switch duty cycle and transformer turns ratio raises the voltage gain flexibly. The reverse recovery losses of the diodes is diminished and lessens the input current ripple and output voltage ripple by employing soft switching technique. This schemed controller utilizes PWM techniques to regulate the output power of boost converter at its maximum value; moreover active clamp scheme is maintained which incorporates switch turn-off voltage spikes and accomplishes ZVS operation for all switches. This paper presents the design method for DC to DC converter with increase in voltage gain by reducing voltage stresses of diodes thereby providing high efficiency and high step up conversion which is applicable for renewable energy sources.

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Author(s): J.Christysudha, T.Anuradha

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