Study of a new technique to reduce the DC-link capacitor in a power electronic system by using a series voltage compensator

Huai Wang, Henry Chung

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    14 Scopus citations

    Abstract

    A novel concept for reduction of dc-link capacitors is proposed in this paper. It is based on introducing a voltage compensator connected in series with the dc bus line. The compensator processes the ripple voltage and reactive power only and thus can be implemented with switches and capacitors of low voltage ratings. The overall required energy storage is reduced, allowing the replacement of electrolytic capacitors by alternatives with longer lifetime and comparable or reduced volume and cost. A general theory that illustrates the proposed concept is presented. The theoretical predictions are favorably verified by simulations and experiments.

    Original languageBritish English
    Title of host publicationIEEE Energy Conversion Congress and Exposition
    Subtitle of host publicationEnergy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings
    Pages4051-4057
    Number of pages7
    DOIs
    StatePublished - 2011
    Event3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011 - Phoenix, AZ, United States
    Duration: 17 Sep 201122 Sep 2011

    Publication series

    NameIEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings

    Conference

    Conference3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011
    Country/TerritoryUnited States
    CityPhoenix, AZ
    Period17/09/1122/09/11

    Keywords

    • capacitance reduction
    • dc-link capacitor
    • power conversion system
    • voltage compensator

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