Next Article in Journal
Influence of Perforated Fin on Flow Characteristics and Thermal Performance in Spiral Finned-Tube Heat Exchanger
Previous Article in Journal
Development Processes of Surface Trucking and Partial Discharge of Pressboards Immersed in Mineral Oil: Effect of Tip Curvatures
Article Menu
Issue 3 (February-1) cover image

Export Article

Open AccessArticle
Energies 2019, 12(3), 555; https://doi.org/10.3390/en12030555

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

1
Department of Electrical Engineering, Federal University of Ceará (UFC), Fortaleza, Ceará 60440-900, Brazil
2
Center of Technologic Sciences, University of Fortaleza (Unifor), Fortaleza, Ceará 60811-905, Brazil
3
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.
*
Author to whom correspondence should be addressed.
Received: 9 January 2019 / Revised: 26 January 2019 / Accepted: 4 February 2019 / Published: 11 February 2019
(This article belongs to the Section Electrical Power and Energy System)
Full-Text   |   PDF [2442 KB, uploaded 13 February 2019]   |  

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. View Full-Text
Keywords: HVDC; EFD; lightning, transmission line; LPS HVDC; EFD; lightning, transmission line; LPS
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Rodrigues, E.; Pontes, R.S.T.; Bandeira, J.; Aguiar, V.P.B. Analysis of the Incidence of Direct Lightning over a HVDC Transmission Line through EFD Model. Energies 2019, 12, 555.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top