A New Approach to Compute Grounding Impedance of Rods in a Frequency Dependent Multi-layer Soil

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorAraujo, Anderson R. J.-
Autor(es): dc.creatorColqui, Jaimis S. L. [UNESP]-
Autor(es): dc.creatorKurokawa, Sergio [UNESP]-
Autor(es): dc.creatorPissolato, Jose-
Autor(es): dc.creatorIEEE-
Data de aceite: dc.date.accessioned2022-08-04T21:59:39Z-
Data de disponibilização: dc.date.available2022-08-04T21:59:39Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2019-12-31-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/218896-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/218896-
Descrição: dc.descriptionLong cylindrical rods are commonly employed to grounding system in transmission lines and they can be buried in stratified soils. In this condition, the grounding impedance is significantly modified by the presence of another layer of soil where analytical formulae are not found in literature. Additionally, frequency dependence of soil parameters (resistivity rho and permittivity epsilon) is an important effect that has to be taken in to account for a precise electromagnetic analysis. To tackle these problems, a new approach is proposed to compute grounding impedance of vertical rods buried in a stratified soil. This approach is based on the equivalent quadripole representation rod seen as short transmission lines in each layer of ground. In this paper, the frequency dependence of soil parameters is considered individually in soil composed by several layers of ground. This approach is compared with numerical and analytical methods proposed in the literature and has presented a good agreement. Simulation results show that adding another layer of soil and considering the frequency dependence of electrical parameters of soil cause a significant reduction in the voltage peaks of GPR (Grounding Potential Rise) waveforms.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionUniv Estadual Campinas, Sch Elect & Comp Engn, BR-13083852 Campinas, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, BR-15385000 Ilha Solteira, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, BR-15385000 Ilha Solteira, SP, Brazil-
Descrição: dc.descriptionFAPESP: 2019/01396-1-
Formato: dc.format5-
Idioma: dc.languageen-
Publicador: dc.publisherIeee-
Relação: dc.relation2020 Ieee Power & Energy Society General Meeting (pesgm)-
???dc.source???: dc.sourceWeb of Science-
Título: dc.titleA New Approach to Compute Grounding Impedance of Rods in a Frequency Dependent Multi-layer Soil-
Aparece nas coleções:Repositório Institucional - Unesp

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