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Research on Reactive Power Optimization of Synchronous Condensers in HVDC Transmission Based on Reactive Power Conversion Factor

Author

Listed:
  • Zican Tao

    (College of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443002, China)

  • Tao Wang

    (Electric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, China)

  • Defu Cai

    (Electric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, China)

  • Rusi Chen

    (Electric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, China)

Abstract

With the rapid development of high-voltage direct current (HVDC) transmission systems, the coupling between AC and DC grids is becoming increasingly close. Voltage disturbances in the grid can easily cause commutation failures in the DC system, threatening its safe and stable operation. The new generation of synchronous condensers (SCs) and modified synchronous condenser units are powerful reactive power support devices widely used in large-capacity DC transmission systems. To maximize the voltage support and commutation failure suppression of SCs, this paper proposes improvements in the initial operating state of SCs, using the Shanxi–Wuhan HVDC receiving end in the Hubei power grid as an example, to better support the HVDC commutation process. Additionally, a reactive power output optimization strategy for SCs is proposed, considering the reactive power equivalent factor of electrical connections between grid nodes. This strategy determines the optimal reactive power output limit of SCs near the converter station to suppress DC commutation failures. Simulation results show that this strategy effectively utilizes the dynamic support capabilities of SCs, prevents DC commutation failures, improves HVDC transmission capacity, and enhances the safety and stability of the receiving end power grid, providing theoretical guidance for reactive power output control.

Suggested Citation

  • Zican Tao & Tao Wang & Defu Cai & Rusi Chen, 2024. "Research on Reactive Power Optimization of Synchronous Condensers in HVDC Transmission Based on Reactive Power Conversion Factor," Energies, MDPI, vol. 17(17), pages 1-16, August.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:17:p:4294-:d:1465578
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    References listed on IDEAS

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    1. Tarek Abedin & M. Shahadat Hossain Lipu & Mahammad A. Hannan & Pin Jern Ker & Safwan A. Rahman & Chong Tak Yaw & Sieh K. Tiong & Kashem M. Muttaqi, 2021. "Dynamic Modeling of HVDC for Power System Stability Assessment: A Review, Issues, and Recommendations," Energies, MDPI, vol. 14(16), pages 1-25, August.
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