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Decentralized Frequency Control of Battery Energy Storage Systems Distributed in Isolated Microgrid

Author

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  • Watcharakorn Pinthurat

    (School of Electrical Engineering and Telecommunications, The University of New South Wales, Sydney 2052, Australia)

  • Branislav Hredzak

    (School of Electrical Engineering and Telecommunications, The University of New South Wales, Sydney 2052, Australia)

Abstract

The penetration and integration of renewable energy sources into modern power systems has been increasing over recent years. This can lead to frequency excursion and low inertia due to renewable energy sources’ intermittency and absence of rotational synchronous machines. Battery energy storage systems can play a crucial role in providing the frequency compensation because of their high ramp rate and fast response. In this paper, a decentralized frequency control system composed of three parts is proposed. The first part provides adaptive frequency droop control with its droop coefficient a function of the real-time state of charge of battery. The second part provides a fully decentralized frequency restoration. In the third part, a virtual inertia emulation improves the microgrid resilience. The presented results demonstrate that the proposed control system improves the microgrid resilience and mitigates the frequency deviation when compared with conventional ω - P droop control and existing control systems. The proposed control system is verified on Real-Time Digital Simulator (RTDS), with accurate microgrid model, nonlinear battery models and detailed switching models of power electronic converters.

Suggested Citation

  • Watcharakorn Pinthurat & Branislav Hredzak, 2020. "Decentralized Frequency Control of Battery Energy Storage Systems Distributed in Isolated Microgrid," Energies, MDPI, vol. 13(11), pages 1-18, June.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:11:p:3026-:d:370395
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    Citations

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    Cited by:

    1. Pinthurat, Watcharakorn & Hredzak, Branislav, 2021. "Fully decentralized control strategy for heterogeneous energy storage systems distributed in islanded DC datacentre microgrid," Energy, Elsevier, vol. 231(C).
    2. Sandro Sitompul & Yuki Hanawa & Verapatra Bupphaves & Goro Fujita, 2020. "State of Charge Control Integrated with Load Frequency Control for BESS in Islanded Microgrid," Energies, MDPI, vol. 13(18), pages 1-19, September.
    3. Mariano G. Ippolito & Fabio Massaro & Rossano Musca & Gaetano Zizzo, 2021. "An Original Control Strategy of Storage Systems for the Frequency Stability of Autonomous Grids with Renewable Power Generation," Energies, MDPI, vol. 14(15), pages 1-22, July.
    4. Sandro Sitompul & Goro Fujita, 2021. "Impact of Advanced Load-Frequency Control on Optimal Size of Battery Energy Storage in Islanded Microgrid System," Energies, MDPI, vol. 14(8), pages 1-18, April.
    5. Komsan Hongesombut & Suphicha Punyakunlaset & Sillawat Romphochai, 2021. "Under Frequency Protection Enhancement of an Islanded Active Distribution Network Using a Virtual Inertia-Controlled-Battery Energy Storage System," Sustainability, MDPI, vol. 13(2), pages 1-39, January.
    6. Jong Ju Kim & June Ho Park, 2021. "A Novel Structure of a Power System Stabilizer for Microgrids," Energies, MDPI, vol. 14(4), pages 1-33, February.
    7. Watcharakorn Pinthurat & Branislav Hredzak, 2021. "Distributed Control Strategy of Single-Phase Battery Systems for Compensation of Unbalanced Active Powers in a Three-Phase Four-Wire Microgrid," Energies, MDPI, vol. 14(24), pages 1-17, December.
    8. Tae-Hwan Jin & Ki-Yeol Shin & Mo Chung & Geon-Pyo Lim, 2022. "Development and Performance Verification of Frequency Control Algorithm and Hardware Controller Using Real-Time Cyber Physical System Simulator," Energies, MDPI, vol. 15(15), pages 1-24, August.

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