An Integrated Four-Port DC/DC Converter for Renewable Energy Applications

    Authors

    Z. J. Qian; O. Abdel-Rahman;I. Batarseh

    Comments

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    Abbreviated Journal Title

    IEEE Trans. Power Electron.

    Keywords

    DC-DC converter; half-bridge; multiple-input single-output (MISO); multiport; zero-voltage switching (ZVS); DC-DC CONVERTER; BIDIRECTIONAL CONVERTER; FUEL-CELL; INTERFACE; MULTIPLE; TRANSFORMER; Engineering, Electrical & Electronic

    Abstract

    This paper proposes a novel converter topology that interfaces four power ports: two sources, one bidirectional storage port, and one isolated load port. The proposed four-port dc/dc converter is derived by simply adding two switches and two diodes to the traditional half-bridge topology. Zero-voltage switching is realized for all four main switches. Three of the four ports can be tightly regulated by adjusting their independent duty-cycle values, while the fourth port is left unregulated to maintain the power balance for the system. Circuit analysis and design considerations are presented; the dynamic modeling and close-loop design guidance are given as well. Experimental results verify the proposed topology and confirm its ability to achieve tight independent control over three power-processing paths. This topology promises significant savings in component count and losses for renewable energy power-harvesting systems.

    Journal Title

    Ieee Transactions on Power Electronics

    Volume

    25

    Issue/Number

    7

    Publication Date

    1-1-2010

    Document Type

    Article

    Language

    English

    First Page

    1877

    Last Page

    1887

    WOS Identifier

    WOS:000278997800011

    ISSN

    0885-8993

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