2014-05-152014-05-152013-07-15GOMES, Kellen Diane de Carvalho. Análise bidimensional dos efeitos das descargas atmosféricas em cabos OPGW utilizando o método ADI-FDTD. Orientador: Victor Alexandrovich Dmitriev. 2013. 58 f. Dissertação (Mestrado em Engenharia Elétrica) - Instituto de Tecnologia, Universidade Federal do Pará, 2013. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/4971. Acesso em:.https://repositorio.ufpa.br/handle/2011/4971In this work it is analyzed the behavior of the electrical current density in OPGW cables when they are subjected to lightning. For this analysis, two models of current were applied, since lightning has two main components that usually cause more damages in the cable: the impulsive component and the direct-current component. The numerical method used for computer simulations is the method ADI-FDTD (Finite Difference Time Domain of Alternating Directions Implicit), which is truncated by CPML technique (Convolutional Perfectly Matched Layers). Based on the behavior of current in the cable, it is done an evaluation to determine which lightning component can cause more damages to the OPGW cable.porAcesso AbertoCabo OPGW (Fio de aterramento ótico )Descargas atmosféricasMétodo ADI-FDTD ( Diferenças finitas no domínio do tempo de direções alternadas implícitas)Técnica CPML ( Camadas convolutivas perfeitamente combinadas)OPGW cables ( Optical ground wire )ADI-FDTD method ( Finite-differences in the time domain of implicit alternating directions)CPML method ( Convolutional perfectly matched layers)Atmospheric dischargesDissertaçãoCNPQ::ENGENHARIAS::ENGENHARIA ELETRICA::TELECOMUNICACOES::TEORIA ELETROMAGNETICA, MICROONDAS, PROPAGACAO DE ONDAS, ANTENAS