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Influence of Ion Flow Field on the Design of Hybrid HVAC and HVDC Transmission Lines with Different Configurations

Author

Listed:
  • Jinyuan Xing

    (PowerChina Sichuan Electric Power Engineering Co., Ltd., Chengdu 610041, China)

  • Chenze Han

    (School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China)

  • Jun Tian

    (PowerChina Sichuan Electric Power Engineering Co., Ltd., Chengdu 610041, China)

  • Hao Wu

    (PowerChina Sichuan Electric Power Engineering Co., Ltd., Chengdu 610041, China)

  • Tiebing Lu

    (School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China)

Abstract

Due to the coupling of DC and AC components, the ion flow field of HVDC and HVAC transmission lines in the same corridor or even the same tower is complex and time-dependent. In order to effectively analyze the ground-level electric field of hybrid transmission lines, the Krylov subspace methods with pre-conditioning treatment are used to solve the discretization equations. By optimizing the coefficient matrix, the calculation efficiency of the iterative process of the electric field in the time domain is greatly increased. Based on the limit of electric field, radio interference and audible noise applied in China, the main factor influencing the design of hybrid transmission lines is determined in terms of electromagnetic environment. After the ground-level electric field of transmission lines with different configurations is analyzed, the minimum height and corridor width of double-circuit 500 kV HVAC lines and one-circuit ±800 kV HVDC lines in the same corridor are obtained. The research provides valuable practical recommendations for optimal tower configurations, minimum heights, and corridor widths under various electromagnetic constraints.

Suggested Citation

  • Jinyuan Xing & Chenze Han & Jun Tian & Hao Wu & Tiebing Lu, 2025. "Influence of Ion Flow Field on the Design of Hybrid HVAC and HVDC Transmission Lines with Different Configurations," Energies, MDPI, vol. 18(14), pages 1-20, July.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:14:p:3657-:d:1698932
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