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Title: A comparison of soft-switched DC-DC converters for fuel cell to utility interface application
Authors: Rathore, A.K.
Bhat, A.K.S.
Oruganti, R. 
Keywords: Fuel cell
High frequency
Utility interface
Issue Date: 2008
Citation: Rathore, A.K.,Bhat, A.K.S.,Oruganti, R. (2008). A comparison of soft-switched DC-DC converters for fuel cell to utility interface application. IEEJ Transactions on Industry Applications 128 (4) : 450-458+13. ScholarBank@NUS Repository.
Abstract: High frequency (HF) transformer isolated DC-DC converter is part of a fuel cell inverter system for utility interface, required to translate the level of low fuel cell stack voltage to meet the peak utility line voltage and provides isolation between inverter and utility line. This paper presents a comparison of various soft-switched HF transformer isolated DC-DC converters for fuel-cell to utility interface application. It is shown that due to wide variation in fuel cell voltage with load variation, none of the voltage-fed converters can maintain ZVS for the complete operating range. Active clamped two-inductor current-fed converter is able to maintain ZVS for wide load and fuel cell stack voltage variations and is suitable for the present application. Analytical, simulation and experimental results are presented to evaluate the performance of the current-fed converter. © 2008 The Institute of Electrical Engineers of Japan.
Source Title: IEEJ Transactions on Industry Applications
ISSN: 09136339
DOI: 10.1541/ieejias.128.450
Appears in Collections:Staff Publications

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