Computation of Surge Voltage in Transmission Tower Located above Frequency-Dependent Soil

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversity of Manitoba Winnipeg-
Autor(es): dc.creatorJusto De Araujo, Anderson Ricardo-
Autor(es): dc.creatorManzi De Azevedo, Walter Luiz-
Autor(es): dc.creatorFilho, Jose Pissolato-
Autor(es): dc.creatorLeon Colqui, Jaimis Saiid-
Autor(es): dc.creatorKurokawa, Sergio-
Autor(es): dc.creatorKordi, Behzad-
Data de aceite: dc.date.accessioned2025-08-21T17:18:49Z-
Data de disponibilização: dc.date.available2025-08-21T17:18:49Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1109/ICLPandSIPDA54065.2021.9627388-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/223378-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/223378-
Descrição: dc.descriptionThe purpose of this paper is to investigate the influence of frequency-dependent soils with variable soil content on the transient voltages at transmission towers. First, a comparative analysis between the impedance of tower-footing grounding rods buried in frequency-independent and frequency-dependent soils is carried. Then, the performance of ground potential rise (GPR) subjected to two types of lightning currents (first and subsequent return strokes) is studied. In a second part, these grounding rods are connected into a single-circuit transmission tower where the admittance of the structure located on frequency-independent and frequency-dependent soil is computed. The surge voltages generated by the two lightning currents are studied for these two types of soil. The frequency-domain responses are computed using the numerical method of Moments based on Electric Field Integral Equations in a frequency range from 100 Hz up to 10 MHz. Numerical results demonstrate that the frequency dependency of soil electrical parameters results in a modification of the rod impedance, especially at high frequencies. As a consequence, when the frequency-dependent soil is considered, a reduction at the transient voltage peaks is obtained compared with those calculated for a frequency-independent soil. This reduction is more pronounced when the transmission tower is located on the soil of high resistivity and subjected to a subsequent return stroke due to its higher energy at the high frequencies.-
Descrição: dc.descriptionFEEC School of Electrical and Computer Engineering State University of Campinas Campinas-
Descrição: dc.descriptionState University of São Paulo DEE-Department of Electrical Engineering, São Paulo-
Descrição: dc.descriptionUniversity of Manitoba Winnipeg Department of Electrical and Computer Engineering-
Idioma: dc.languageen-
Relação: dc.relation2021 35th International Conference on Lightning Protection, ICLP 2021 and 16th International Symposium on Lightning Protection, SIPDA 2021-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectElectromagnetic transients-
Palavras-chave: dc.subjectGround potential rise-
Palavras-chave: dc.subjectGrounding grid-
Palavras-chave: dc.subjectWater content-
Título: dc.titleComputation of Surge Voltage in Transmission Tower Located above Frequency-Dependent Soil-
Tipo de arquivo: dc.typeaula digital-
Aparece nas coleções:Repositório Institucional - Unesp

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