A 1D-FDM Transmission Line Model for Partial Discharge Current Simulations Validated Against Needle-Plate HVDC Laboratory Experiments: Calculations of Ionized Air Conductivity
Abstract In this paper, we present a novel numerical model for simulating partial discharges (PDs) transient currents excited by high-voltage DC (HVDC) systems. The model is based on the telegraph equations, which are solved in the time domain via the finite-difference method (FDM). With the propose...
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Sociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de Eletromagnetismo
2025-02-01
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| Series: | Journal of Microwaves, Optoelectronics and Electromagnetic Applications |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742025000100202&lng=en&tlng=en |
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| author | Rodrigo M. S. de Oliveira Nathan M. Lopes Júlio A. S. do Nascimento |
| author_facet | Rodrigo M. S. de Oliveira Nathan M. Lopes Júlio A. S. do Nascimento |
| author_sort | Rodrigo M. S. de Oliveira |
| collection | DOAJ |
| description | Abstract In this paper, we present a novel numerical model for simulating partial discharges (PDs) transient currents excited by high-voltage DC (HVDC) systems. The model is based on the telegraph equations, which are solved in the time domain via the finite-difference method (FDM). With the proposed model, one can simulate air ionization through its distinct phases based on the electric field’s magnitude. This study specifically provides effective electrical conductivity of ionized air over time and space, calculated in the discharge channel also as a function of voltage and gap distance in a needle-plate setup. Validation is performed against experimental results from our laboratory experiments, demonstrating agreement despite the model’s one-dimensional nature. The simplicity of the model leads to much smaller simulation times (up to two minutes) compared to more complex three-dimensional models (typically requiring hours to complete), highlighting its potential for efficient PD analysis and future developments of general PD models based on effective plasma conductivity. |
| format | Article |
| id | doaj-art-3b5f4ab908cb4c5c9e4689afefc73148 |
| institution | Kabale University |
| issn | 2179-1074 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Sociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de Eletromagnetismo |
| record_format | Article |
| series | Journal of Microwaves, Optoelectronics and Electromagnetic Applications |
| spelling | doaj-art-3b5f4ab908cb4c5c9e4689afefc731482025-02-04T07:40:21ZengSociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de EletromagnetismoJournal of Microwaves, Optoelectronics and Electromagnetic Applications2179-10742025-02-0124110.1590/2179-10742025v24i1287804A 1D-FDM Transmission Line Model for Partial Discharge Current Simulations Validated Against Needle-Plate HVDC Laboratory Experiments: Calculations of Ionized Air ConductivityRodrigo M. S. de Oliveirahttps://orcid.org/0000-0001-7178-6387Nathan M. Lopeshttps://orcid.org/0000-0003-4822-7418Júlio A. S. do Nascimentohttps://orcid.org/0000-0003-3524-3021Abstract In this paper, we present a novel numerical model for simulating partial discharges (PDs) transient currents excited by high-voltage DC (HVDC) systems. The model is based on the telegraph equations, which are solved in the time domain via the finite-difference method (FDM). With the proposed model, one can simulate air ionization through its distinct phases based on the electric field’s magnitude. This study specifically provides effective electrical conductivity of ionized air over time and space, calculated in the discharge channel also as a function of voltage and gap distance in a needle-plate setup. Validation is performed against experimental results from our laboratory experiments, demonstrating agreement despite the model’s one-dimensional nature. The simplicity of the model leads to much smaller simulation times (up to two minutes) compared to more complex three-dimensional models (typically requiring hours to complete), highlighting its potential for efficient PD analysis and future developments of general PD models based on effective plasma conductivity.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742025000100202&lng=en&tlng=enEffective Electrical ConductivityFinite-Difference MethodHigh-Voltage Direct Current (HVDC)Partial Discharges. |
| spellingShingle | Rodrigo M. S. de Oliveira Nathan M. Lopes Júlio A. S. do Nascimento A 1D-FDM Transmission Line Model for Partial Discharge Current Simulations Validated Against Needle-Plate HVDC Laboratory Experiments: Calculations of Ionized Air Conductivity Journal of Microwaves, Optoelectronics and Electromagnetic Applications Effective Electrical Conductivity Finite-Difference Method High-Voltage Direct Current (HVDC) Partial Discharges. |
| title | A 1D-FDM Transmission Line Model for Partial Discharge Current Simulations Validated Against Needle-Plate HVDC Laboratory Experiments: Calculations of Ionized Air Conductivity |
| title_full | A 1D-FDM Transmission Line Model for Partial Discharge Current Simulations Validated Against Needle-Plate HVDC Laboratory Experiments: Calculations of Ionized Air Conductivity |
| title_fullStr | A 1D-FDM Transmission Line Model for Partial Discharge Current Simulations Validated Against Needle-Plate HVDC Laboratory Experiments: Calculations of Ionized Air Conductivity |
| title_full_unstemmed | A 1D-FDM Transmission Line Model for Partial Discharge Current Simulations Validated Against Needle-Plate HVDC Laboratory Experiments: Calculations of Ionized Air Conductivity |
| title_short | A 1D-FDM Transmission Line Model for Partial Discharge Current Simulations Validated Against Needle-Plate HVDC Laboratory Experiments: Calculations of Ionized Air Conductivity |
| title_sort | 1d fdm transmission line model for partial discharge current simulations validated against needle plate hvdc laboratory experiments calculations of ionized air conductivity |
| topic | Effective Electrical Conductivity Finite-Difference Method High-Voltage Direct Current (HVDC) Partial Discharges. |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742025000100202&lng=en&tlng=en |
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