Lightning Impulse Overvoltage Propagation in HVDC Meshed Grid
This paper reports on the propagation of lightning overvoltage in a high-voltage direct current (HVDC) meshed grid. Since several topologies of meshed grids have been elaborated in the last decade, we used a common comprehensive reference test platform. The lightning impulse propagation was investig...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/11/3047 |
| _version_ | 1797532823001759744 |
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| author | Marek Florkowski Jakub Furgał Maciej Kuniewski |
| author_facet | Marek Florkowski Jakub Furgał Maciej Kuniewski |
| author_sort | Marek Florkowski |
| collection | DOAJ |
| description | This paper reports on the propagation of lightning overvoltage in a high-voltage direct current (HVDC) meshed grid. Since several topologies of meshed grids have been elaborated in the last decade, we used a common comprehensive reference test platform. The lightning impulse propagation was investigated with regard to the impact of surge arresters and the polarity of the lightning stroke concerning the DC line polarity (±500 kV). Various scenarios were considered, including a direct lightning strike to the DC+ conductor, to the tower, and to the shielding wire in the middle of the span, including backflash on the insulators. The influence of tower footing impedance on overvoltage levels at various nodes was assessed, depicting the critical value. A description of the models used in the simulations was provided. The main focus of the paper was on the wide-area propagation of the overvoltages in the meshed grid, at distant terminals and inside the feeders. An interesting observation was the effects of lightning at the far end of the analyzed grid, propagating through multiterminal and long-distance connections. The presented analysis, based on an exemplary meshed HVDC grid, underlines the importance of the insulation coordination studies and system security studies with respect to the localization of overvoltage protection systems. |
| first_indexed | 2024-03-10T11:05:46Z |
| format | Article |
| id | doaj.art-cbcecea469984bc1945a26bdb70e7953 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T11:05:46Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-cbcecea469984bc1945a26bdb70e79532023-11-21T21:12:09ZengMDPI AGEnergies1996-10732021-05-011411304710.3390/en14113047Lightning Impulse Overvoltage Propagation in HVDC Meshed GridMarek Florkowski0Jakub Furgał1Maciej Kuniewski2Department of Electrical and Power Engineering, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, PolandDepartment of Electrical and Power Engineering, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, PolandDepartment of Electrical and Power Engineering, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, PolandThis paper reports on the propagation of lightning overvoltage in a high-voltage direct current (HVDC) meshed grid. Since several topologies of meshed grids have been elaborated in the last decade, we used a common comprehensive reference test platform. The lightning impulse propagation was investigated with regard to the impact of surge arresters and the polarity of the lightning stroke concerning the DC line polarity (±500 kV). Various scenarios were considered, including a direct lightning strike to the DC+ conductor, to the tower, and to the shielding wire in the middle of the span, including backflash on the insulators. The influence of tower footing impedance on overvoltage levels at various nodes was assessed, depicting the critical value. A description of the models used in the simulations was provided. The main focus of the paper was on the wide-area propagation of the overvoltages in the meshed grid, at distant terminals and inside the feeders. An interesting observation was the effects of lightning at the far end of the analyzed grid, propagating through multiterminal and long-distance connections. The presented analysis, based on an exemplary meshed HVDC grid, underlines the importance of the insulation coordination studies and system security studies with respect to the localization of overvoltage protection systems.https://www.mdpi.com/1996-1073/14/11/3047meshed HVDC gridshigh voltagelightning impulseovervoltage propagationflashoverDC transmission |
| spellingShingle | Marek Florkowski Jakub Furgał Maciej Kuniewski Lightning Impulse Overvoltage Propagation in HVDC Meshed Grid Energies meshed HVDC grids high voltage lightning impulse overvoltage propagation flashover DC transmission |
| title | Lightning Impulse Overvoltage Propagation in HVDC Meshed Grid |
| title_full | Lightning Impulse Overvoltage Propagation in HVDC Meshed Grid |
| title_fullStr | Lightning Impulse Overvoltage Propagation in HVDC Meshed Grid |
| title_full_unstemmed | Lightning Impulse Overvoltage Propagation in HVDC Meshed Grid |
| title_short | Lightning Impulse Overvoltage Propagation in HVDC Meshed Grid |
| title_sort | lightning impulse overvoltage propagation in hvdc meshed grid |
| topic | meshed HVDC grids high voltage lightning impulse overvoltage propagation flashover DC transmission |
| url | https://www.mdpi.com/1996-1073/14/11/3047 |
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