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Control Strategies and Stabilization Techniques for DC/DC Converters Application in DC MGs: Challenges, Opportunities, and Prospects—A Review

Author

Listed:
  • Aphrodis Nduwamungu

    (School of Engineering, Mathematics, and Computer Sciences, Auckland University of Technology, Auckland 1120, New Zealand)

  • Tek Tjing Lie

    (School of Engineering, Mathematics, and Computer Sciences, Auckland University of Technology, Auckland 1120, New Zealand)

  • Ioannis Lestas

    (Department of Engineering, Information Engineering, University of Cambridge, Cambridge CB2 1TN, UK)

  • Nirmal-Kumar C. Nair

    (Faculty of Engineering, Department of Electrical, Computer and Software Engineering, University of Auckland, Auckland 1010, New Zealand)

  • Kosala Gunawardane

    (School of Electrical and Data Engineering, University of Technology Sydney, Sydney 123, Australia)

Abstract

DC microgrids (DC MGs) offer advantages such as efficiency, control, cost, reliability, and size compared to AC MGs. However, they often operate with numerous constant power loads (CPLs), exhibiting a negative incremental impedance characteristic that can lead to instability. This instability weakens stability boundaries and reduces system damping, especially when dealing with pulsed power loads (PPLs) on electric aircraft, ships, and cars. Linear controllers may not ensure stability across various operations, causing voltage dips and potential system instability. To secure DC/DC converter functionality and comply with impedance specifications, it is crucial to consider minor loop gain in control strategies and stabilization techniques. Employing diverse methods to decrease minor loop gain in DC/DC converters is essential. A comprehensive evaluation, including strengths, weaknesses, opportunities, and threats (SWOT) analysis, is conducted to assess control strategies, stabilization techniques, and stability standards for different DC/DC converters, identifying SWOT.

Suggested Citation

  • Aphrodis Nduwamungu & Tek Tjing Lie & Ioannis Lestas & Nirmal-Kumar C. Nair & Kosala Gunawardane, 2024. "Control Strategies and Stabilization Techniques for DC/DC Converters Application in DC MGs: Challenges, Opportunities, and Prospects—A Review," Energies, MDPI, vol. 17(3), pages 1-28, January.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:3:p:669-:d:1330089
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    References listed on IDEAS

    as
    1. Jiayang He & Yangyu Chen & Jiongtao Lin & Jianghui Chen & Li Cheng & Yu Wang, 2023. "Review of Modeling, Modulation, and Control Strategies for the Dual-Active-Bridge DC/DC Converter," Energies, MDPI, vol. 16(18), pages 1-30, September.
    2. B. Igliński & M. Skrzatek & W. Kujawski & M. Cichosz & R. Buczkowski, 2022. "SWOT analysis of renewable energy sector in Mazowieckie Voivodeship (Poland): current progress, prospects and policy implications," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 24(1), pages 77-111, January.
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