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Operation Analysis of Power Systems with HVDC Interconnections Using a Transient Stability Aware OPF Method

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  • John E. Syllignakis

    (School of Production Engineering and Management, Technical University of Crete, 73100 Chania, Greece)

  • Fotis D. Kanellos

    (School of Electrical and Computer Engineering, Technical University of Crete, 73100 Chania, Greece)

Abstract

High-voltage direct current (HVDC) transmission systems are widely used today due to their several advantages over high-voltage alternative current (HVAC) systems. They are primarily utilized in connecting different large grids or smaller independent networks, especially in submarine interconnections. Many studies have been conducted globally on the optimal planning, operation, and control of these power systems. Understanding the transient stability of these systems during significant disturbances is also of great importance. This paper specifically focuses on power systems with HVDC connections and high penetration of renewable energy sources. Analytical models were developed for power system components like HVDC converters, DC lines, and full converter wind generators. A simulation of a test-case power system was conducted, including various significant disturbances such as HVDC line trips, short circuits, power unit failures, and major changes in load. The voltage and frequency stability of the system under specific operational scenarios was also examined. The results obtained indicate technical limitations and operating guidelines to avoid undesirable conditions and system failure. In conclusion, adopting short-term stability tests the optimal operation point of the system, and the limitations in the penetration by RES units can be decided.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:21:p:5279-:d:1505086
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    References listed on IDEAS

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    1. 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.
    2. Liuming Jing & Jiahe Wei & Lei Xia & Zhaolin Fan & Jinghua Zhou, 2023. "An Improved Power-Sharing Method for a Multi-Terminal HVDC Transmission System Based on Adaptive Voltage Droop Control," Energies, MDPI, vol. 16(17), pages 1-15, August.
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