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A Differentiated Dynamic Reactive Power Compensation Scheme for the Suppression of Transient Voltage Dips in Distribution Systems

Author

Listed:
  • Jie Dang

    (Central China Branch of State Grid Corporation of China, Wuhan 430072, China)

  • Fei Tang

    (Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network, School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China
    School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China)

  • Jiale Wang

    (Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network, School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China
    School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China)

  • Xiaodong Yu

    (Central China Branch of State Grid Corporation of China, Wuhan 430072, China)

  • Huipeng Deng

    (Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network, School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China
    School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China)

Abstract

At present, with the construction of new power systems, the uncertainty of the system is increasing and the transient voltage stability of the power grid is becoming more and more complicated. For this reason, this paper proposes a differentiated dynamic reactive power compensation configuration method for suppressing transient voltage dip instability. The method first establishes a dynamic reactive power device configuration indicator system based on multiple-two-element notation, and then establishes a differentiated dynamic reactive power compensation device configuration model based on the node instability risk characteristics. The model takes the investment cost and suppression effect as the optimization objectives, and flexibly adjusts the optimization weights of its cost and suppression effect according to the high or low risk of the transient voltage instability of the compensation node, so as to realize the differentiated dynamic reactive power compensation. Compared with traditional compensation methods, differentiated compensation can significantly improve the economic benefits of reactive power compensation configuration. Finally, taking the IEEE39 node test system as an example, the improved TLBO algorithm is used to solve the model. The cost of differentiated compensation is reduced by 22.13%, with a similar suppression effect, which verifies the validity of the method proposed in this paper.

Suggested Citation

  • Jie Dang & Fei Tang & Jiale Wang & Xiaodong Yu & Huipeng Deng, 2023. "A Differentiated Dynamic Reactive Power Compensation Scheme for the Suppression of Transient Voltage Dips in Distribution Systems," Sustainability, MDPI, vol. 15(18), pages 1-22, September.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:18:p:13816-:d:1241222
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    Cited by:

    1. Yangyang Li & Dongfeng Yang & Chuang Liu & Dongbo Guo & Yichen Gu & Jiahe Li, 2024. "Dynamic Reactive Power Allocation Method of Power Grid with High-Permeability PV Considering Transient Voltage Stability," Energies, MDPI, vol. 17(5), pages 1-27, March.

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