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A Distributed Control Scheme for Cyber-Physical DC Microgrid Systems

Author

Listed:
  • Adeniyi K. Onaolapo

    (Department of Electrical Engineering Technology, The University of Johannesburg, Johannesburg P.O. Box 524, South Africa)

  • Gulshan Sharma

    (Department of Electrical Engineering Technology, The University of Johannesburg, Johannesburg P.O. Box 524, South Africa)

  • Pitshou N. Bokoro

    (Department of Electrical Engineering Technology, The University of Johannesburg, Johannesburg P.O. Box 524, South Africa)

  • Anuoluwapo Aluko

    (Department of Electrical and Software Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada)

  • Giovanni Pau

    (Faculty of Engineering and Architecture, Kore University of Enna, 94100 Enna, Italy)

Abstract

An innovative distributed secondary control technique for balanced current sharing and voltage regulation for an off-grid DC microgrid setup is presented in this research. The droop control scheme is conventionally used for current sharing amongst distributed sources (DSs) in a microgrid. However, this method has two major drawbacks. Firstly, due to the line resistance of each DS, the output voltage is different for each DS, and the output current-sharing property deteriorates. Secondly, the droop action increases the DC bus voltage variation. To address these drawbacks, a fuzzy-based distributed secondary controller is proposed. The proposed controller in each DS simultaneously ensures balanced current sharing and sustains DC bus voltage at the reference value by using a communication network to interact with one another. The required circumstance to guarantee the proposed controller’s stability is provided. The stability analysis is beneficial to inform the choice of control parameters. The real-time simulation outputs demonstrate the proposed control scheme’s robustness in achieving the control objectives under varying operating conditions.

Suggested Citation

  • Adeniyi K. Onaolapo & Gulshan Sharma & Pitshou N. Bokoro & Anuoluwapo Aluko & Giovanni Pau, 2023. "A Distributed Control Scheme for Cyber-Physical DC Microgrid Systems," Energies, MDPI, vol. 16(15), pages 1-17, July.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:15:p:5611-:d:1202457
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    References listed on IDEAS

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    1. Raphael Carrijo de Oliveira & Fernando Lessa Tofoli & Aniel Silva de Morais, 2023. "Novel Isolated Multiple-Input, Multiple-Output Multidirectional Converter for Modern Low-Voltage DC Power Distribution Architectures," Sustainability, MDPI, vol. 15(5), pages 1-33, March.
    2. Namhla Mtukushe & Adeniyi K. Onaolapo & Anuoluwapo Aluko & David G. Dorrell, 2023. "Review of Cyberattack Implementation, Detection, and Mitigation Methods in Cyber-Physical Systems," Energies, MDPI, vol. 16(13), pages 1-25, July.
    3. Liu, Xingrang & Bansal, R.C., 2014. "Integrating multi-objective optimization with computational fluid dynamics to optimize boiler combustion process of a coal fired power plant," Applied Energy, Elsevier, vol. 130(C), pages 658-669.
    4. Anuoluwapo Aluko & Elutunji Buraimoh & Oluwafemi Emmanuel Oni & Innocent Ewean Davidson, 2022. "Advanced Distributed Cooperative Secondary Control of Islanded DC Microgrids," Energies, MDPI, vol. 15(11), pages 1-17, May.
    Full references (including those not matched with items on IDEAS)

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