Efficiency Evaluation on a CoolMos Switching and IGBT Conducting Multilevel Inverter

Alexander Anthon, Zhe Zhang, Michael A. E. Andersen, Toke Franke

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    Abstract

    This paper deals with a three-level inverter topology in the 3 kW range as an alternative to commonly used three-level topologies. The topology is attractive for having low switching losses due to the utilization of CoolMos switching devices while keeping conduction losses low due to the utilization of IGBTs. A proper time delay between the CoolMos and IGBT devices increases the efficiency by 0.2%. Maximum efficiencies of 97.7 % are achieved and less than 0.2 % efficiency degradation is possible with doubled switching frequency. The case temperatures of the switching devices are below 60 ◦C at full power
    Original languageEnglish
    Title of host publicationProceedings of APEC 2015
    PublisherIEEE
    Publication date2015
    Pages2251-2255
    ISBN (Print)978-1-4799-6735-3
    DOIs
    Publication statusPublished - 2015
    Event30th Applied Power Electronics Conference and Exposition - Charlotte Convention Center, Charlotte, United States
    Duration: 15 Mar 201519 Mar 2015

    Conference

    Conference30th Applied Power Electronics Conference and Exposition
    LocationCharlotte Convention Center
    Country/TerritoryUnited States
    CityCharlotte
    Period15/03/201519/03/2015

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