Detalhes bibliográficos
Ano de defesa: |
2008 |
Autor(a) principal: |
OLIVEIRA, Rodrigo Melo e Silva de
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Orientador(a): |
SOUZA SOBRINHO, Carlos Leônidas da Silva
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Banca de defesa: |
Não Informado pela instituição |
Tipo de documento: |
Tese
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Tipo de acesso: |
Acesso aberto |
Idioma: |
por |
Instituição de defesa: |
Universidade Federal do Pará
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Programa de Pós-Graduação: |
Programa de Pós-Graduação em Engenharia Elétrica
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Departamento: |
Instituto de Tecnologia
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País: |
Brasil
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Palavras-chave em Português: |
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Área do conhecimento CNPq: |
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Link de acesso: |
http://www.repositorio.ufpa.br:8080/jspui/handle/2011/1990
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Resumo: |
The FDTD method in General Coordinates (LN-FDTD) was implemented for analyzing structures not coincident to the Cartesian coordinate system. The method solves the Maxwells equations in time domain, allowing the calculation of data concerning the transitory and steady-state responses of such structures. The method is applied to analyze of special grounding electrodes. A new formulation for the truncating technique UPML, for conductive media, referred here as LN-UPML, was developed and implemented in order to make the simulations viable. A new methodology for locating grounding grid faults using two Artificial Neural Networks is presented. The LN-FDTD software was tested and validated though simulations of various grounding systems. A graphical user interface, named LANE SAGS, was implemented to simplify the use and to automate the data processing. |