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Optimal and Decentralized Control Strategies for Inverter-Based AC Microgrids

Author

Listed:
  • Michael D. Cook

    (Department of Mechanical Engineering, Milwaukee School of Engineering, Milwaukee, WI 53202, USA)

  • Eddy H. Trinklein

    (Department of Mechanical Engineering & Engineering Mechanics, Michigan Technological University, Houghton, MI 49931, USA)

  • Gordon G. Parker

    (Department of Mechanical Engineering & Engineering Mechanics, Michigan Technological University, Houghton, MI 49931, USA)

  • Rush D. Robinett

    (Department of Mechanical Engineering & Engineering Mechanics, Michigan Technological University, Houghton, MI 49931, USA)

  • Wayne W. Weaver

    (Department of Electrical & Computer Engineering, Michigan Technological University, Houghton, MI 49931, USA)

Abstract

This paper presents two control strategies: (i) An optimal exergy destruction (OXD) controller and (ii) a decentralized power apportionment (DPA) controller. The OXD controller is an analytical, closed-loop optimal feedforward controller developed utilizing exergy analysis to minimize exergy destruction in an AC inverter microgrid. The OXD controller requires a star or fully connected topology, whereas the DPA operates with no communication among the inverters. The DPA presents a viable alternative to conventional P − ω / Q − V droop control, and does not suffer from fluctuations in bus frequency or steady-state voltage while taking advantage of distributed storage assets necessary for the high penetration of renewable sources. The performances of OXD-, DPA-, and P − ω / Q − V droop-controlled microgrids are compared by simulation.

Suggested Citation

  • Michael D. Cook & Eddy H. Trinklein & Gordon G. Parker & Rush D. Robinett & Wayne W. Weaver, 2019. "Optimal and Decentralized Control Strategies for Inverter-Based AC Microgrids," Energies, MDPI, vol. 12(18), pages 1-20, September.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:18:p:3529-:d:267084
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    References listed on IDEAS

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    1. Md Alamgir Hossain & Hemanshu Roy Pota & Walid Issa & Md Jahangir Hossain, 2017. "Overview of AC Microgrid Controls with Inverter-Interfaced Generations," Energies, MDPI, vol. 10(9), pages 1-27, August.
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    Cited by:

    1. Igyso Zafeiratou & Ionela Prodan & Laurent Lefévre, 2021. "A Hierarchical Control Approach for Power Loss Minimization and Optimal Power Flow within a Meshed DC Microgrid," Energies, MDPI, vol. 14(16), pages 1-27, August.
    2. Marcel Nicola & Claudiu-Ionel Nicola & Dan Selișteanu, 2022. "Improvement of the Control of a Grid Connected Photovoltaic System Based on Synergetic and Sliding Mode Controllers Using a Reinforcement Learning Deep Deterministic Policy Gradient Agent," Energies, MDPI, vol. 15(7), pages 1-32, March.
    3. Marcel Nicola & Claudiu-Ionel Nicola, 2021. "Fractional-Order Control of Grid-Connected Photovoltaic System Based on Synergetic and Sliding Mode Controllers," Energies, MDPI, vol. 14(2), pages 1-25, January.

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