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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 573A ZVS DC-DC Converter with High Voltage Gain for...

A ZVS DC-DC Converter with High Voltage Gain for Fuel Cell Systems

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Abstract:

The interest toward the application of fuel cells is increasing in the last years mainly due to the possibility of highly efficient decentralized clean energy generation. The output voltage of fuel-cell stacks is generally below 50 V. Consequently, low-power applications with high output voltage require a high gain for proper operation. A zero-voltage-switching (ZVS) dc–dc converter with high voltage gain is proposed for fuel cell as a front-end converter. It consists of a ZVS boost converter stage and a ZVS half-bridge converter stage and two stages are merged into a single stage. The ZVS boost converter stage provides a continuous input current and ZVS operation of the power switches. The ZVS half-bridge converter stage provides a high voltage gain. The principle of operation and system analysis are presented. Theoretical analysis and simulation result of the proposed converter were verified.

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Periodical:

Applied Mechanics and Materials (Volume 573)

Pages:

83-88

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.573.83

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Online since:

June 2014

Authors:

A. Marikkannan*, B.V. Manikandan, S. Jeyanthi

Keywords:

Boost Converter, Coupled Inductor, Fuel Cell (FC), High Voltage Gain, Reverse Recovery, Zero Voltage Switching (ZVS)

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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