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A Non-Uniform Transmission Line Model of the ±1100 kV UHV Tower

Author

Listed:
  • Xianshan Guo

    (State Grid Corporation of China, Beijing 100000, China)

  • Ying Fu

    (State Grid Corporation of China, Beijing 100000, China)

  • Jingqiu Yu

    (Department of Electrical Engineering, Zhejiang University, Hangzhou 310058, China)

  • Zheng Xu

    (Department of Electrical Engineering, Zhejiang University, Hangzhou 310058, China)

Abstract

The modeling of the Ultra-High Voltage (UHV) tower plays an important role in lightning protection analysis of transmission lines because the model used will directly affect the reliability of the results. Moreover, the higher the voltage level is, the more prominent the impact becomes. This paper first analyzes the inapplicability of the Hara multi-segment multi-surge impedance model for the ±1100 kV UHV towers, and then builds a non-uniform transmission line model of the tower. Secondly, the multi-segment multi-surge impedance model is used to study the influence of the tower’s spatial structure changes on its electromagnetic transient characteristics. It is concluded that the more accurately the nominal height of the tower is modeled, the more accurately its electromagnetic transient response is reflected. Finally, the lightning electromagnetic transient responses of the tower with the non-uniform transmission line model and with the multi-segment multi-surge impedance model are compared and analyzed, which shows that the non-uniform transmission line model is more in line with the actual situation under the lightning strikes.

Suggested Citation

  • Xianshan Guo & Ying Fu & Jingqiu Yu & Zheng Xu, 2019. "A Non-Uniform Transmission Line Model of the ±1100 kV UHV Tower," Energies, MDPI, vol. 12(3), pages 1-15, January.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:3:p:445-:d:202123
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    Citations

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    Cited by:

    1. Erika Stracqualursi & Giuseppe Pelliccione & Salvatore Celozzi & Rodolfo Araneo, 2022. "Tower Models for Power Systems Transients: A Review," Energies, MDPI, vol. 15(13), pages 1-40, July.
    2. Xiaodong Li & Zheng Xu, 2021. "Feasibility Evaluation on Elimination of DC Filters for Line-Commutated Converter-Based High-Voltage Direct Current Projects in New Situations," Energies, MDPI, vol. 14(18), pages 1-16, September.
    3. Rodrigo Nuricumbo-Guillén & Fermín P. Espino Cortés & Pablo Gómez & Carlos Tejada Martínez, 2019. "Computation of Transient Profiles along Nonuniform Transmission Lines Including Time-Varying and Nonlinear Elements Using the Numerical Laplace Transform," Energies, MDPI, vol. 12(17), pages 1-16, August.
    4. Issouf Fofana & Bo Zhang, 2022. "High-Voltage Engineering and Applications in Our Modern Society," Energies, MDPI, vol. 15(22), pages 1-4, November.

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