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Droop Frequency Limit Control and Its Parameter Optimization in VSC-HVDC Interconnected Power Grids

Author

Listed:
  • Han Jiang

    (Global Energy Interconnection Development and Cooperation Organization, Beijing 100031, China)

  • Yichen Zhou

    (College of Electrical Engineering, Sichuan University, Chengdu 610065, China)

  • Yi Gao

    (Global Energy Interconnection Development and Cooperation Organization, Beijing 100031, China)

  • Shilin Gao

    (College of Electrical Engineering, Sichuan University, Chengdu 610065, China)

Abstract

With the gradual emergence of trends such as the asynchronous interconnection of power grids and the increasing penetration of renewable energy, the issues of ultra-low-frequency oscillations and low-frequency stability in power grids have become more prominent, posing serious challenges to the safety and stability of systems. The voltage-source converter-based HVDC (VSC-HVDC) interconnection is an effective solution to the frequency stability problems faced by regional power grids. VSC-HVDC can participate in system frequency stability control through a frequency limit controller (FLC). This paper first analyses the basic principles of how VSC-HVDC participates in system frequency stability control. Then, in response to the frequency stability control requirements of the sending and receiving power systems, a droop FLC strategy is designed. Furthermore, a multi-objective optimization method for the parameters of the droop FLC is proposed. Finally, a large-scale electromagnetic transient simulation model of the VSC-HVDC interconnected power system is constructed to verify the effectiveness of the proposed droop FLC method.

Suggested Citation

  • Han Jiang & Yichen Zhou & Yi Gao & Shilin Gao, 2024. "Droop Frequency Limit Control and Its Parameter Optimization in VSC-HVDC Interconnected Power Grids," Energies, MDPI, vol. 17(15), pages 1-18, August.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:15:p:3851-:d:1450023
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    Cited by:

    1. John E. Syllignakis & Fotis D. Kanellos, 2024. "Operation Analysis of Power Systems with HVDC Interconnections Using a Transient Stability Aware OPF Method," Energies, MDPI, vol. 17(21), pages 1-24, October.

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