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A Comprehensive Loss Model and Comparison of AC and DC Boost Converters

Author

Listed:
  • Daniel L. Gerber

    (Lawrence Berkeley National Laboratory, Department of Building Technologies Urban Systems, Berkeley, CA 94720, USA)

  • Fariborz Musavi

    (Department of Electrical Engineering and Computer Science, Washington State University, Vancouver, WA 99163, USA)

  • Omkar A. Ghatpande

    (National Renewable Energy Laboratory, Building Energy Science Group, Golden, CO 80401, USA)

  • Stephen M. Frank

    (National Renewable Energy Laboratory, Building Energy Science Group, Golden, CO 80401, USA)

  • Jason Poon

    (Lawrence Berkeley National Laboratory, Department of Building Technologies Urban Systems, Berkeley, CA 94720, USA)

  • Richard E. Brown

    (Lawrence Berkeley National Laboratory, Department of Building Technologies Urban Systems, Berkeley, CA 94720, USA)

  • Wei Feng

    (Lawrence Berkeley National Laboratory, Department of Building Technologies Urban Systems, Berkeley, CA 94720, USA)

Abstract

DC microgrids have become a prevalent topic in research in part due to the expected superior efficiency of DC/DC converters compared to their AC/DC counterparts. Although numerous side-by-side analyses have quantified the efficiency benefits of DC power distribution, these studies all modeled converter loss based on product data that varied in component quality and operating voltage. To establish a fair efficiency comparison, this work derives a formulaic loss model of a DC/DC and an AC/DC PFC boost converter. These converters are modeled with identical components and an equivalent input and output voltage. Simulated designs with real components show AC/DC boost converters between 100 W to 500 W having up to 2.5 times more loss than DC/DC boost converters. Although boost converters represent a fraction of electronics in buildings, these loss models can eventually work toward establishing a comprehensive model-based full-building analysis.

Suggested Citation

  • Daniel L. Gerber & Fariborz Musavi & Omkar A. Ghatpande & Stephen M. Frank & Jason Poon & Richard E. Brown & Wei Feng, 2021. "A Comprehensive Loss Model and Comparison of AC and DC Boost Converters," Energies, MDPI, vol. 14(11), pages 1-21, May.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:11:p:3131-:d:563480
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    References listed on IDEAS

    as
    1. Gerber, Daniel L. & Vossos, Vagelis & Feng, Wei & Marnay, Chris & Nordman, Bruce & Brown, Richard, 2018. "A simulation-based efficiency comparison of AC and DC power distribution networks in commercial buildings," Applied Energy, Elsevier, vol. 210(C), pages 1167-1187.
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    Cited by:

    1. Gerber, Daniel L. & Ghatpande, Omkar A. & Nazir, Moazzam & Heredia, Willy G. Bernal & Feng, Wei & Brown, Richard E., 2022. "Energy and power quality measurement for electrical distribution in AC and DC microgrid buildings," Applied Energy, Elsevier, vol. 308(C).

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