Efficiency improvement in redundant power systems by means of thermal load sharing

Carsten Nesgaard, Michael Andreas E. Andersen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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    Abstract

    The demand for higher output currents at ever lower voltage levels is often solved by paralleling multiple converters. Provided redundancy is implemented this technique, besides being relatively easy to implement, has the advantage of improving the overall system reliability. Also, the parallel-connection concept forms the basis of a very cost-effective power system design, since the entire system often can be realized using off-the-shelf units. This paper verifies experimentally that the use of the thermal load sharing technique, proposed in [1], not only increases the overall system reliability but also has a positive impact on the system efficiency. The latter aspect is achieved by redistributing the current throughput of each converter, which in turn results in equal thermal conditions as opposed to the current sharing technique’s intent to establish equal currents.
    Original languageEnglish
    Title of host publicationAPEC 2004 – Nineteenth Annual IEEE Applied Power Electronics
    Volume1
    PublisherIEEE
    Publication date2004
    Pages433-442
    ISBN (Print)0-7803-8269-2
    DOIs
    Publication statusPublished - 2004
    Event19th Annual IEEE Applied Power Electronics Conference and Exposition - Anaheim, United States
    Duration: 22 Feb 200426 Feb 2004
    Conference number: 19
    http://www.apec-conf.org/2004/APEC04_Home_Page.html

    Conference

    Conference19th Annual IEEE Applied Power Electronics Conference and Exposition
    Number19
    Country/TerritoryUnited States
    CityAnaheim
    Period22/02/200426/02/2004
    Internet address

    Bibliographical note

    Copyright: 2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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