High Efficiency Power Converter for a Doubly-fed SOEC/SOFC System

Kevin Tomas Manez, Alexander Anthon, Zhe Zhang

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    Regenerative fuel cells (RFC) have become an attractive technology for energy storage systems due to their high energy density and lower end-of-life disposal concerns. However, high efficiency design of power conditioning unit (PCU) for RFC becomes challenging due to their asymmetrical currentpower characteristics that are dependent on the operation mode (energy storage / energy supply). This paper proposes a new PCU architecture for grid-tie RFC with which the RFC’s asymmetrical characteristic becomes less critical and thus a much more symmetrical power rating of the dc-dc converter for both
    operating modes is possible. This paper discusses the design considerations for this novel PCU, and verifies its operation principle with Matlab/Simulink simulations. Experimental results on a tailored dc-dc converter confirm the design simplifications for high efficiency operation along the entire power operating range of the RFC as well as the utilization of the same control strategy design for the two RFC operating modes.
    Original languageEnglish
    Title of host publicationProceedings of 2016 IEEE Applied Power Electronics Conference and Exposition
    Publication date2016
    Pages1235 - 1242
    ISBN (Print)978-1-4673-8393-6
    Publication statusPublished - 2016
    Event2016 IEEE Applied Power Electronics Conference and Exposition - Long Beach Convention & Entertainment Center, Long Beach, United States
    Duration: 20 Mar 201624 Mar 2016
    Conference number: 31


    Conference2016 IEEE Applied Power Electronics Conference and Exposition
    LocationLong Beach Convention & Entertainment Center
    Country/TerritoryUnited States
    CityLong Beach
    Internet address


    • Bidirectional fuel cells
    • Power conditioning
    • Interleaved boost converter
    • Renewable energies
    • Grid tie


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