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Analysis of the Incidence of Direct Lightning over a HVDC Transmission Line through EFD Model

Author

Listed:
  • Ednardo Rodrigues

    (Department of Electrical Engineering, Federal University of Ceará (UFC), Fortaleza, Ceará 60440-900, Brazil)

  • Ricardo S. T. Pontes

    (Department of Electrical Engineering, Federal University of Ceará (UFC), Fortaleza, Ceará 60440-900, Brazil
    Center of Technologic Sciences, University of Fortaleza (Unifor), Fortaleza, Ceará 60811-905, Brazil)

  • João Bandeira

    (Department of Electrical Engineering, Federal University of Ceará (UFC), Fortaleza, Ceará 60440-900, Brazil)

  • Victor P. B. Aguiar

    (Department of Engineering and Technology, Federal Rural University of Semi-Arid Region (UFERSA), Mossoró 59625-900, Rio Grande do Norte, Brazil
    This author is a member of IEEE.)

Abstract

HVDC systems are becoming more common worldwide, specially in Brazil, since the adoption of such system for Itaipu’s hydroelectric complex in the 1980’s. Today, the country has the Xingu-Estreito bipole, with length of 2375 km. This system crosses a region with high lightning incidence, a phenomenon which causes faults in power systems. The most widely used model for the positioning of the arrestor cables over a transmission line is the electrogeometric model. This model, however, does not take into account the different potentials over the structure’s surface, and therefore presents significant inaccuracies when assessing the risk of lightning strikes on structures such as a HVDC line. This work then used the Electric Field Deflection (EFD) model with the aid finite elements. Four levels of lightning are assessed (I, II, III and IV), with current peaks of 3.9, 5.4, 10.1 and 15.7 kA. It was verified that the positive pole tends to attract most of the lightning with shielding failures width (SFW) of 12, 8, 4 and 0 m. It was then proposed to move the arrestor cables horizontally. The study indicates that this horizontal shifting of the cables in 5 and 8 m toward the side with larger chance of direct incidence reduces the shielding failure widths in 50% for peak current of 3.9 kA and almost eliminates the strikes for lightning with peak currents of 5.4, 10.1 and 15.7 kA.

Suggested Citation

  • Ednardo Rodrigues & Ricardo S. T. Pontes & João Bandeira & Victor P. B. Aguiar, 2019. "Analysis of the Incidence of Direct Lightning over a HVDC Transmission Line through EFD Model," Energies, MDPI, vol. 12(3), pages 1-17, February.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:3:p:555-:d:204851
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    References listed on IDEAS

    as
    1. Jordi-Roger Riba & Andrea Morosini & Francesca Capelli, 2018. "Comparative Study of AC and Positive and Negative DC Visual Corona for Sphere-Plane Gaps in Atmospheric Air," Energies, MDPI, vol. 11(10), pages 1-18, October.
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    Cited by:

    1. Carlos Tejada-Martinez & Fermin P. Espino-Cortes & Suat Ilhan & Aydogan Ozdemir, 2019. "Optimization of Radio Interference Levels for 500 and 600 kV Bipolar HVDC Transmission Lines," Energies, MDPI, vol. 12(16), pages 1-14, August.
    2. Marek Florkowski & Jakub Furgał & Maciej Kuniewski, 2021. "Lightning Impulse Overvoltage Propagation in HVDC Meshed Grid," Energies, MDPI, vol. 14(11), pages 1-21, May.

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