Transient Analysis of Grounding Electrodes in Multilayer Soils Using Method of Moments

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Manitoba-
Autor(es): dc.creatorColqui, Jaimis Sajid Leon-
Data de aceite: dc.date.accessioned2025-08-21T16:54:05Z-
Data de disponibilização: dc.date.available2025-08-21T16:54:05Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1109/TLA.2022.9661466-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/223222-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/223222-
Descrição: dc.descriptionGrounding electrodes are expected to provide a low-impedance path for faults and lightning transient currents and protect the safety of electrical equipment and nearby people against dangerous induced potentials. In this context, a precise model of the grounding electrodes is needed to represent a certain electrode arrangement buried in stratified soil. This paper computes the grounding impedances of different grounding systems buried in three different soil configurations (homogeneous, 2-layer and 3-layer soil) modeled by its frequency-dependent electrical parameters. A simulation model using a commercial full-wave electromagnetic software FEKO to compute the grounding impedances is presented. Method of Moments(MoM), a frequency-domain numerical method, is employed to compute the grounding impedance in a frequency range of100 Hz to 5 MHz. Next, the developed ground potential rise(GPR) generated by two types of lightning currents (first and subsequent return strokes) injected into these grounding systems is computed. Time-domain GPR of each grounding system is also determined using the Vector Fitting (VF) technique combined with the ATP-software. Results show that GPR waveform is reduced when frequency-dependent soils are employed. This reduction is more pronounced in homogeneous and in 2-layersoils of high and moderated resistivity whereas the 3-layer soil has a minor impact due to the lower soil resistivity-
Descrição: dc.descriptionState University Campinas (UNICAMP)-
Descrição: dc.descriptionSao Paulo State University (UNESP)-
Descrição: dc.descriptionState University of Campinas-
Descrição: dc.descriptionUniversity of Manitoba-
Descrição: dc.descriptionSao Paulo State University (UNESP)-
Formato: dc.format269-275-
Idioma: dc.languagept_BR-
Relação: dc.relationIEEE Latin America Transactions-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectComputational modeling-
Palavras-chave: dc.subjectElectrodes-
Palavras-chave: dc.subjectGrounding-
Palavras-chave: dc.subjectMethod of moments-
Palavras-chave: dc.subjectSoftware-
Palavras-chave: dc.subjectSoil-
Palavras-chave: dc.subjectTransient analysis-
Título: dc.titleTransient Analysis of Grounding Electrodes in Multilayer Soils Using Method of Moments-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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