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High Step-Up Active-Clamp Converter With Input-Current Doubler and Output-Voltage Doubler for Fuel Cell Power Systems SCIE SCOPUS

Title
High Step-Up Active-Clamp Converter With Input-Current Doubler and Output-Voltage Doubler for Fuel Cell Power Systems
Authors
Kwon, JMKwon, BH
Date Issued
2009-01
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGI
Abstract
A high-efficiency high step-up dc-dc converter is proposed for fuel cell power systems. The proposed system consists of an input-current doubler, an output-voltage doubler, and an active-clamp circuit. The input-current doubler and the output-voltage doubler provide a much higher voltage conversion ratio without using a high turns ratio in the transformer and increase the overall efficiency. A series-resonant circuit of the output-voltage doubler removes the reverse-recovery problem of the rectifying diodes. The active-clamp circuit clamps the surge voltage of switches and recycles the energy stored in the leakage inductance of the transformer. The operation principle of the converter is analyzed and verified. A 1 kW prototype is implemented to show the performance of the proposed converter. The prototype achieved a European efficiency of 96% at an input voltage of 30 V.
Keywords
Active-clamp circuit; input-current doubler; voltage-doubler rectifier; DC-DC CONVERTER; HALF-BRIDGE CONVERTER; GENERATION; IMPLEMENTATION; INVERTER; DESIGN; RANGE
URI
https://oasis.postech.ac.kr/handle/2014.oak/28704
DOI
10.1109/TPEL.2008.2006268
ISSN
0885-8993
Article Type
Article
Citation
IEEE TRANSACTIONS ON POWER ELECTRONICS, vol. 24, no. 39815, page. 108 - 115, 2009-01
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권봉환KWON, BONG HWAN
Dept of Electrical Enginrg
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