Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Marcio Matias Afonso"'
Autor:
Fabio Henrique Pereira, Marcio Matias Afonso, João Antônio de Vasconcelos, Silvio Ikuyo Nabeta
Publikováno v:
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol 9, Iss 2, Pp 78-88
The system resulting from the coupled Finite Element Method and Boundary Element Method formulations inherits all characteristics of both finite element and boundary element equation system, i. e., the system is partially sparse and symmetric and par
Externí odkaz:
https://doaj.org/article/6bca64e4efd44bf68862b78b338b7cff
Autor:
Fernando A. Assis, Marco Aurélio O. Schroeder, Marcio Matias Afonso, Rodolfo A. R. Moura, Leonidas C. Resende
Publikováno v:
Journal of Control, Automation and Electrical Systems. 33:574-587
The electric and magnetic fields generated by transmission lines, at ground level, must be carefully analyzed to ensure low levels of induced voltage in surrounded metallic elements. Additionally, whenever possible, one main concern on transmission l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f10812ba652eff79fa1bfa5159e511c1
https://doi.org/10.1007/s40313-021-00794-x
https://doi.org/10.1007/s40313-021-00794-x
Autor:
Sandro T. M. Goncalves, André Luiz Paganotti, Marcio Matias Afonso, Isabella Abrão Marques Duane, Marco Aurélio O. Schroeder, Rodney R. Saldanha
Publikováno v:
Journal of Control, Automation and Electrical Systems. 31:1288-1297
This paper presents an efficient procedure for optimizing the electric field at ground level of high surge impedance loading transmission lines. Such lines have the capacity to achieve higher power transmission rates than the conventional ones. The e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5380e77dcfe1da5341dada1b48ff2dc6
https://doi.org/10.1007/s40313-020-00628-2
https://doi.org/10.1007/s40313-020-00628-2
Autor:
Rodney R. Saldanha, André Luiz Paganotti, Marco Aurélio O. Schroeder, Marcio Matias Afonso, Marielle Jordane da Silva
Publikováno v:
Anais do Simpósio Brasileiro de Sistemas Elétricos 2020.
In this paper, a new methodology is applied for the optimization process of the geometry of the bundle of conductors of the overhead transmission lines. This methodology is based on the application of the Adjoint Method to calculate the sensitivity o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3eeff1c5782a14730ee5696636e0e63
https://doi.org/10.48011/sbse.v1i1.2455
https://doi.org/10.48011/sbse.v1i1.2455
Autor:
Marcílio Q. Melo, André Luiz Paganotti, Marcio Matias Afonso, Marco Aurélio O. Schroeder, Eduardo G. Silveira, Barbara Mara Ferreira Goncalves
Publikováno v:
Anais do Simpósio Brasileiro de Sistemas Elétricos 2020.
O efeito Ferranti pode ser definido como o aumento de tensão no receptor da Linha de Transmissão (LT) e frequentemente está associado a linhas longas e na situação em que a carga é baixa. Esse fenômeno pode influenciar a operação técnica e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49a58f4c92afa6f7f59e653793f2d0c3
https://doi.org/10.48011/sbse.v1i1.2359
https://doi.org/10.48011/sbse.v1i1.2359
Autor:
Marco Aurélio O. Schroeder, Maria Teresa Correia de Barros, Antonio C. S. Lima, Rodolfo A. R. Moura, Marcio Matias Afonso
Publikováno v:
Electric Power Systems Research. 159:40-49
This work assesses the influence of including the wideband behaviour of grounding systems in EMT-type programs on evaluation of transients resulting from direct lightning strikes to transmission lines. The grounding frequency behaviour is determined
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::616b5083f099a7fbd3ba43a889439f2e
https://doi.org/10.1016/j.epsr.2017.09.020
https://doi.org/10.1016/j.epsr.2017.09.020
Publikováno v:
IEEE Transactions on Magnetics. 54:1-4
The purpose of this paper is to introduce a modified approach for the electric field computation at the surface of overhead transmission line (TL) conductors through the finite-element method (FEM). The proposed strategy is based on a spatial transfo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e3568e853cd79808ecab5b601a684f2
https://doi.org/10.1109/tmag.2017.2773264
https://doi.org/10.1109/tmag.2017.2773264
Autor:
Marcio Matias Afonso, Eduardo Nunes Gonçalves, Eduardo Henrique da Rocha Coppoli, Ursula C. Resende, Gustavo Henrique Monteiro Almeida
Publikováno v:
IEEE Latin America Transactions. 16:694-700
This work applies the linear optimization theory to the minimum cost flow problem of voice traffic management in a real mobile telecommunication network. A voice traffic assignment method between core network elements is proposed to achieve the optim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be9535049573d266521a43ddc8d841e1
https://doi.org/10.1109/tla.2018.8327431
https://doi.org/10.1109/tla.2018.8327431
Publikováno v:
2019 19th International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering (ISEF).
In this study, the meshless local radial point interpolation method (LRPIM) is used to model an electromagnetic device. This method is considered to be an interesting alternative to the finite element method and here it is used for evaluating the mag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bd09e9417b3880d5b5a0001bf976ddf
https://doi.org/10.1109/isef45929.2019.9097001
https://doi.org/10.1109/isef45929.2019.9097001
Publikováno v:
2019 19th International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering (ISEF).
Numerical solutions of an electrostatic contour value problem in heterogeneous media are obtained using local differential quadrature method. In order to do this, multiquadrics functions – a case of radial basis functions – are employed as test f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf8bbe3f28ce95ba7eedfdd21763db0d
https://doi.org/10.1109/isef45929.2019.9097030
https://doi.org/10.1109/isef45929.2019.9097030