Detalhes bibliográficos
| Ano de defesa: |
2008 |
| Autor(a) principal: |
Pinheiro, Fernando Henrique Costa
 |
| Orientador(a): |
PESSANHA, José Eduardo Onoda
|
| Banca de defesa: |
Não Informado pela instituição |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Federal do Maranhão
|
| Programa de Pós-Graduação: |
PROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA DE ELETRICIDADE/CCET
|
| Departamento: |
Engenharia
|
| País: |
BR
|
| Palavras-chave em Português: |
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| Palavras-chave em Inglês: |
|
| Área do conhecimento CNPq: |
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| Link de acesso: |
http://tedebc.ufma.br:8080/jspui/handle/tede/403
|
Resumo: |
This work depicts transmission line modeling for lightning strike time domain simulation. It is studied and presented the main mechanisms associated to lightning formation and striking high-voltage transmission lines and wave propagation theory concerned to the hit point. Following, it is presented and analyzed transmission lines, shield wires and tower models available in the used ATPDraw computer program. Finally, a complete model is constructed taking into account a real utility transmission branch (ELETRONORTE-Ma), including transmission lines, respective towers and shield wires, through computational models available in the ATPDraw computer program. Computer simulations are carried out and the final model is tested for different scenarios: a standard lightning striking a transmission tower; a standard lightning striking a transmission tower with lower tower foot resistance; lightning striking transmission tower for different soil conditions (dry and humid); insulation strength analysis taking into account different hit points (middle of a shield wire and at the top of a transmission tower). The results show that the model behaved as expected. |
