Grounding System Modeling and Evaluation Using Integrated Circuit Based Fast Relaxed Vector Fitting Approach, Considering Soil Ionization
Since high voltage transmission line towers or wind turbines structures are installed in high-altitude areas, it is essential to achieve a high overvoltage protection system against direct and indirect lightning strikes collisions. The lightning current must be discharged quickly into the protective...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/16/5632 |
| _version_ | 1797558224658890752 |
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| author | Maziyar Fakhraei Mehrdad Mahmoudian Eduardo Manuel Godinho Rodrigues |
| author_facet | Maziyar Fakhraei Mehrdad Mahmoudian Eduardo Manuel Godinho Rodrigues |
| author_sort | Maziyar Fakhraei |
| collection | DOAJ |
| description | Since high voltage transmission line towers or wind turbines structures are installed in high-altitude areas, it is essential to achieve a high overvoltage protection system against direct and indirect lightning strikes collisions. The lightning current must be discharged quickly into the protective earth, to prevent the dangerous over-voltages formation and define a reference voltage node. This paper presents a novel model to assess the behavior of the grounding system, based on Pocklington integral equations under lightning magnetic fields and variations in soil ionization, in which an explicit circuit-based vector fitting RLC admittance branches are proposed. The frequency-dependent behavior of grounding system frequency response and soil ionization effect is modeled in time domain, straightly to implement into the electro-magnetic transient program (EMTP). The model verification contains horizontal, vertical, and their combinations of grounding grids to represent the complete investigations under lightning strikes. The harmonic impedance mathematical formulations and principles are derived based on a rational function, that could be applicable on ground potential rise (GPR) investigation. |
| first_indexed | 2024-03-10T17:28:20Z |
| format | Article |
| id | doaj.art-542a08c88c3545bf9802fdc0d62688ae |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T17:28:20Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-542a08c88c3545bf9802fdc0d62688ae2023-11-20T10:06:41ZengMDPI AGApplied Sciences2076-34172020-08-011016563210.3390/app10165632Grounding System Modeling and Evaluation Using Integrated Circuit Based Fast Relaxed Vector Fitting Approach, Considering Soil IonizationMaziyar Fakhraei0Mehrdad Mahmoudian1Eduardo Manuel Godinho Rodrigues2Department of Control, Fars Regional Electric Company, Shiraz 71346, IranElectrical Engineering Department, Firouzabad Institute of Higher Education, Firouzabad 74717, IranSchool of Design, University of Aveiro, Management and Production Technologies of Northern Aveiro (ESAN), 3720-509 Oliveira de Azeméis, PortugalSince high voltage transmission line towers or wind turbines structures are installed in high-altitude areas, it is essential to achieve a high overvoltage protection system against direct and indirect lightning strikes collisions. The lightning current must be discharged quickly into the protective earth, to prevent the dangerous over-voltages formation and define a reference voltage node. This paper presents a novel model to assess the behavior of the grounding system, based on Pocklington integral equations under lightning magnetic fields and variations in soil ionization, in which an explicit circuit-based vector fitting RLC admittance branches are proposed. The frequency-dependent behavior of grounding system frequency response and soil ionization effect is modeled in time domain, straightly to implement into the electro-magnetic transient program (EMTP). The model verification contains horizontal, vertical, and their combinations of grounding grids to represent the complete investigations under lightning strikes. The harmonic impedance mathematical formulations and principles are derived based on a rational function, that could be applicable on ground potential rise (GPR) investigation.https://www.mdpi.com/2076-3417/10/16/5632grounding systemlightning strokesoil ionizationvector fitting |
| spellingShingle | Maziyar Fakhraei Mehrdad Mahmoudian Eduardo Manuel Godinho Rodrigues Grounding System Modeling and Evaluation Using Integrated Circuit Based Fast Relaxed Vector Fitting Approach, Considering Soil Ionization Applied Sciences grounding system lightning stroke soil ionization vector fitting |
| title | Grounding System Modeling and Evaluation Using Integrated Circuit Based Fast Relaxed Vector Fitting Approach, Considering Soil Ionization |
| title_full | Grounding System Modeling and Evaluation Using Integrated Circuit Based Fast Relaxed Vector Fitting Approach, Considering Soil Ionization |
| title_fullStr | Grounding System Modeling and Evaluation Using Integrated Circuit Based Fast Relaxed Vector Fitting Approach, Considering Soil Ionization |
| title_full_unstemmed | Grounding System Modeling and Evaluation Using Integrated Circuit Based Fast Relaxed Vector Fitting Approach, Considering Soil Ionization |
| title_short | Grounding System Modeling and Evaluation Using Integrated Circuit Based Fast Relaxed Vector Fitting Approach, Considering Soil Ionization |
| title_sort | grounding system modeling and evaluation using integrated circuit based fast relaxed vector fitting approach considering soil ionization |
| topic | grounding system lightning stroke soil ionization vector fitting |
| url | https://www.mdpi.com/2076-3417/10/16/5632 |
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