The Impact of Transmission Line Modeling on Lightning Overvoltage
In most of the work that investigates the backflashover phenomenon due to direct lightning strikes, using EMT-type simulators, transmission lines are represented by the J. Marti model and the ground effect is computed employing J. R. Carson’s formulations. Thus, the ground displacement current is ne...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-01-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/16/3/1343 |
| _version_ | 1797624664373067776 |
|---|---|
| author | Jaimis Sajid Leon Colqui Rodolfo Antônio Ribeiro de Moura Marco Aurélio De Oliveira Schroeder José Pissolato Filho Sérgio Kurokawa |
| author_facet | Jaimis Sajid Leon Colqui Rodolfo Antônio Ribeiro de Moura Marco Aurélio De Oliveira Schroeder José Pissolato Filho Sérgio Kurokawa |
| author_sort | Jaimis Sajid Leon Colqui |
| collection | DOAJ |
| description | In most of the work that investigates the backflashover phenomenon due to direct lightning strikes, using EMT-type simulators, transmission lines are represented by the J. Marti model and the ground effect is computed employing J. R. Carson’s formulations. Thus, the ground displacement current is neglected, the line voltage definition corresponds to the wire potential formulation, and soil resistivity is considered frequency-independent. These considerations can lead to erroneous measurements of the occurrences of the backflashover phenomenon in the insulator strings of transmission line. In this sense, this paper presents a systematic sensitivity analysis study of lightning overvoltage in insulator strings considering more physically consistent models of the transmission line, which consider the displacement current, ground admittance correction, rigorous voltage definition, and frequency-dependent soil parameters. According to the results, for the case study, transmission line parameters modeling can present a maximum percentual difference of around 71.54%, considering the frequency range of first strokes. This difference leads to a percent difference of around 5.25% in the maximum overvoltage across the insulator strings. These differences confirm that the occurrence or not of backflashover in the insulator strings, including the disruption time, are sensitive to the line model considered. |
| first_indexed | 2024-03-11T09:45:46Z |
| format | Article |
| id | doaj.art-26d6c545495e4e278ac60fe7d4f3e809 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T09:45:46Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-26d6c545495e4e278ac60fe7d4f3e8092023-11-16T16:36:10ZengMDPI AGEnergies1996-10732023-01-01163134310.3390/en16031343The Impact of Transmission Line Modeling on Lightning OvervoltageJaimis Sajid Leon Colqui0Rodolfo Antônio Ribeiro de Moura1Marco Aurélio De Oliveira Schroeder2José Pissolato Filho3Sérgio Kurokawa4School of Electrical and Computer Engineering, State University of Campinas—UNICAMP, Campinas 13083-852, BrazilElectrical Engineering Department, Federal University of São João del-Rei—UFSJ, São João del-Rei 36307-352, BrazilElectrical Engineering Department, Federal University of São João del-Rei—UFSJ, São João del-Rei 36307-352, BrazilSchool of Electrical and Computer Engineering, State University of Campinas—UNICAMP, Campinas 13083-852, BrazilDepartment of Electrical Engineering, São Paulo State University—UNESP, Ilha Solteira 15385-000, BrazilIn most of the work that investigates the backflashover phenomenon due to direct lightning strikes, using EMT-type simulators, transmission lines are represented by the J. Marti model and the ground effect is computed employing J. R. Carson’s formulations. Thus, the ground displacement current is neglected, the line voltage definition corresponds to the wire potential formulation, and soil resistivity is considered frequency-independent. These considerations can lead to erroneous measurements of the occurrences of the backflashover phenomenon in the insulator strings of transmission line. In this sense, this paper presents a systematic sensitivity analysis study of lightning overvoltage in insulator strings considering more physically consistent models of the transmission line, which consider the displacement current, ground admittance correction, rigorous voltage definition, and frequency-dependent soil parameters. According to the results, for the case study, transmission line parameters modeling can present a maximum percentual difference of around 71.54%, considering the frequency range of first strokes. This difference leads to a percent difference of around 5.25% in the maximum overvoltage across the insulator strings. These differences confirm that the occurrence or not of backflashover in the insulator strings, including the disruption time, are sensitive to the line model considered.https://www.mdpi.com/1996-1073/16/3/1343transmission line modelinglightning overvoltagesfrequency-dependent soil parametersEMT-type simulators |
| spellingShingle | Jaimis Sajid Leon Colqui Rodolfo Antônio Ribeiro de Moura Marco Aurélio De Oliveira Schroeder José Pissolato Filho Sérgio Kurokawa The Impact of Transmission Line Modeling on Lightning Overvoltage Energies transmission line modeling lightning overvoltages frequency-dependent soil parameters EMT-type simulators |
| title | The Impact of Transmission Line Modeling on Lightning Overvoltage |
| title_full | The Impact of Transmission Line Modeling on Lightning Overvoltage |
| title_fullStr | The Impact of Transmission Line Modeling on Lightning Overvoltage |
| title_full_unstemmed | The Impact of Transmission Line Modeling on Lightning Overvoltage |
| title_short | The Impact of Transmission Line Modeling on Lightning Overvoltage |
| title_sort | impact of transmission line modeling on lightning overvoltage |
| topic | transmission line modeling lightning overvoltages frequency-dependent soil parameters EMT-type simulators |
| url | https://www.mdpi.com/1996-1073/16/3/1343 |
| work_keys_str_mv | AT jaimissajidleoncolqui theimpactoftransmissionlinemodelingonlightningovervoltage AT rodolfoantonioribeirodemoura theimpactoftransmissionlinemodelingonlightningovervoltage AT marcoaureliodeoliveiraschroeder theimpactoftransmissionlinemodelingonlightningovervoltage AT josepissolatofilho theimpactoftransmissionlinemodelingonlightningovervoltage AT sergiokurokawa theimpactoftransmissionlinemodelingonlightningovervoltage AT jaimissajidleoncolqui impactoftransmissionlinemodelingonlightningovervoltage AT rodolfoantonioribeirodemoura impactoftransmissionlinemodelingonlightningovervoltage AT marcoaureliodeoliveiraschroeder impactoftransmissionlinemodelingonlightningovervoltage AT josepissolatofilho impactoftransmissionlinemodelingonlightningovervoltage AT sergiokurokawa impactoftransmissionlinemodelingonlightningovervoltage |