Numerical model of lightning attachment on UHV-AC transmission lines and effects of operating voltage, phase angle, and terrain
A numerical model for lightning attachment on UHV-AC double-circuit transmission lines was developed using the leader propagation method (LPM) and the finite element method (FEM). The striking distance (SD) of the ground wire (GW) was calculated based on this model. The effects of operating voltage,...
| Main Authors: | , , , |
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| Format: | Article |
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Elsevier
2024
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| Online Access: | http://psasir.upm.edu.my/id/eprint/105620/ |
| _version_ | 1848864562416189440 |
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| author | Ma, Ziwei Jasni, Jasronita Ab Kadir, Mohd Zainal Abidin Azis, Norhafiz |
| author_facet | Ma, Ziwei Jasni, Jasronita Ab Kadir, Mohd Zainal Abidin Azis, Norhafiz |
| author_sort | Ma, Ziwei |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A numerical model for lightning attachment on UHV-AC double-circuit transmission lines was developed using the leader propagation method (LPM) and the finite element method (FEM). The striking distance (SD) of the ground wire (GW) was calculated based on this model. The effects of operating voltage, phase angle, and terrain on the electric field of the wires were also analyzed. The simulation results revealed that when the phase conductors were energized, upward leaders (ULs) simultaneously occurred on both the GW and the upper-phase conductor. The velocity of the GW UL was faster than that of the upper-phase UL, allowing it to successfully intercept the downward leader (DL) in the air, while the upper-phase UL aborted after propagating 1.8 m under the shielding effect of the GW UL. A new expression of rs=7.2Ip0.87 for calculating the SD on the GW was proposed based on the simulation results. This expression provided reasonable results that fell between those obtained from the electro-geometric models and the analytical model. Additionally, the simulation results demonstrated that extremely high voltage, phase angle, and terrain slope increased the surface electric field of the upper-phase conductor, thereby increasing the risk of shielding failure. |
| first_indexed | 2025-11-15T13:50:47Z |
| format | Article |
| id | upm-105620 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T13:50:47Z |
| publishDate | 2024 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1056202024-05-07T03:32:03Z http://psasir.upm.edu.my/id/eprint/105620/ Numerical model of lightning attachment on UHV-AC transmission lines and effects of operating voltage, phase angle, and terrain Ma, Ziwei Jasni, Jasronita Ab Kadir, Mohd Zainal Abidin Azis, Norhafiz A numerical model for lightning attachment on UHV-AC double-circuit transmission lines was developed using the leader propagation method (LPM) and the finite element method (FEM). The striking distance (SD) of the ground wire (GW) was calculated based on this model. The effects of operating voltage, phase angle, and terrain on the electric field of the wires were also analyzed. The simulation results revealed that when the phase conductors were energized, upward leaders (ULs) simultaneously occurred on both the GW and the upper-phase conductor. The velocity of the GW UL was faster than that of the upper-phase UL, allowing it to successfully intercept the downward leader (DL) in the air, while the upper-phase UL aborted after propagating 1.8 m under the shielding effect of the GW UL. A new expression of rs=7.2Ip0.87 for calculating the SD on the GW was proposed based on the simulation results. This expression provided reasonable results that fell between those obtained from the electro-geometric models and the analytical model. Additionally, the simulation results demonstrated that extremely high voltage, phase angle, and terrain slope increased the surface electric field of the upper-phase conductor, thereby increasing the risk of shielding failure. Elsevier 2024-02 Article PeerReviewed Ma, Ziwei and Jasni, Jasronita and Ab Kadir, Mohd Zainal Abidin and Azis, Norhafiz (2024) Numerical model of lightning attachment on UHV-AC transmission lines and effects of operating voltage, phase angle, and terrain. Electric Power Systems Research, 227. art. no. 109986. pp. 1-10. ISSN 0378-7796; ESSN: 1873-2046 https://linkinghub.elsevier.com/retrieve/pii/S037877962300874X 10.1016/j.epsr.2023.109986 |
| spellingShingle | Ma, Ziwei Jasni, Jasronita Ab Kadir, Mohd Zainal Abidin Azis, Norhafiz Numerical model of lightning attachment on UHV-AC transmission lines and effects of operating voltage, phase angle, and terrain |
| title | Numerical model of lightning attachment on UHV-AC transmission lines and effects of operating voltage, phase angle, and terrain |
| title_full | Numerical model of lightning attachment on UHV-AC transmission lines and effects of operating voltage, phase angle, and terrain |
| title_fullStr | Numerical model of lightning attachment on UHV-AC transmission lines and effects of operating voltage, phase angle, and terrain |
| title_full_unstemmed | Numerical model of lightning attachment on UHV-AC transmission lines and effects of operating voltage, phase angle, and terrain |
| title_short | Numerical model of lightning attachment on UHV-AC transmission lines and effects of operating voltage, phase angle, and terrain |
| title_sort | numerical model of lightning attachment on uhv-ac transmission lines and effects of operating voltage, phase angle, and terrain |
| url | http://psasir.upm.edu.my/id/eprint/105620/ http://psasir.upm.edu.my/id/eprint/105620/ http://psasir.upm.edu.my/id/eprint/105620/ |