Comparative Evaluation of Three-Phase Isolated Matrix-Type PFC Rectifier Concepts for High Efficiency 380VDC Supplies of Future Telco and Data Centers

Patricio Cortes, Dominik Bortis, Riccardo Pittini, Johann W. Kolar

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

    Abstract

    Due to the high energy consumption in data and telco centers, the use of 380V or 400V DC facility-level distribution has been proposed as an alternative to the conventional AC distribution for a more efficient power delivery structure. The DC voltage is powered from the three-phase mains by a PFC rectifier and in many cases a mains transformer is used to provide galvanic isolation. In order to achieve a high efficiency in the DC voltage generation and to implement the required isolation, a single-stage concept, such as a matrix-type rectifier that enables PFC functionality and galvanic isolation in a single conversion, can be beneficial. In addition, due to the fact that with the matrix-type rectifier the galvanic isolation is performed with a high-frequency transformer, this results in a more compact rectifier system compared to conventional systems where the mains-frequency isolation transformer is located at the input of the PFC rectifier. In this paper, an overview of isolated matrix-type PFC rectifier topologies is given and a new converter circuit is proposed, analyzed and comparatively evaluated against another promising PFC rectifier concept, the phase-modular IMY-rectifier.
    Original languageEnglish
    Title of host publicationProceedings of 16th European Conference on Power Electronics and Applications
    Number of pages10
    PublisherIEEE
    Publication date2014
    Article number6910990
    ISBN (Print)9781479930159
    DOIs
    Publication statusPublished - 2014
    Event16th Conference on Power Electronics and Applications - Lappeenranta University of Technology, Lappeenranta, Finland
    Duration: 26 Aug 201428 Aug 2014
    Conference number: 16

    Conference

    Conference16th Conference on Power Electronics and Applications
    Number16
    LocationLappeenranta University of Technology
    Country/TerritoryFinland
    CityLappeenranta
    Period26/08/201428/08/2014

    Keywords

    • DC power supply
    • Matrix converter
    • Power factor correction
    • Power supply
    • Efficiency

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