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Comprehensive analysis and design of multi-leg fuel cell boost converter

Author

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  • Hwang, Jonq-Chin
  • Chen, Li-Hsiu
  • Yeh, Sheng-Nian

Abstract

This paper presents the design and development of a practical multi-leg fuel cell boost converter. The applied multi-leg topology and the interleaved switching method can effectively reduce fuel cell current ripple to meet the suggested limitation of 4%. Input inductors play a critical role for ripple current reduction, while output capacitors are used for specified output voltage performance. In the selection of the input inductors and the output capacitors, this paper uniquely presents an analytic method for obtaining optimum parameter values. The design considerations include leg number, switching frequency, output loads, and dynamic response. Novel equivalent models with equivalent series resistors for multi-leg boost converters are proposed. This model can simplify the analysis of multi-leg converters and is thus used for compensation design. To verify the analytic results, Intersil ISL6556B integrated circuit is used to implement two-, three-, and four-leg fuel cell boost converters rated 1000Â W. Finally, the experimental results show that the four-leg one can have lower ripple factor than its two- and three-leg counterparts, and meet the limitation of fuel cell output current ripple factor of 4%.

Suggested Citation

  • Hwang, Jonq-Chin & Chen, Li-Hsiu & Yeh, Sheng-Nian, 2007. "Comprehensive analysis and design of multi-leg fuel cell boost converter," Applied Energy, Elsevier, vol. 84(12), pages 1274-1288, December.
    • Handle: RePEc:eee:appene:v:84:y:2007:i:12:p:1274-1288
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    Cited by:

    1. Durán, E. & Andújar, J.M. & Segura, F. & Barragán, A.J., 2011. "A high-flexibility DC load for fuel cell and solar arrays power sources based on DC-DC converters," Applied Energy, Elsevier, vol. 88(5), pages 1690-1702, May.
    2. Bizon, N., 2011. "Nonlinear control of fuel cell hybrid power sources: Part I - Voltage control," Applied Energy, Elsevier, vol. 88(7), pages 2559-2573, July.
    3. Kalantar, M. & Mousavi G., S.M., 2010. "Posicast control within feedback structure for a DC-DC single ended primary inductor converter in renewable energy applications," Applied Energy, Elsevier, vol. 87(10), pages 3110-3114, October.
    4. David Marroqui & Ausias Garrigós & Cristian Torres & Carlos Orts & Jose M. Blanes & Roberto Gutierrez, 2021. "Interleaved, Switched Inductor and High-Gain Wide Bandgap Based Boost Converter Proposal," Energies, MDPI, vol. 14(4), pages 1-11, February.

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