Zobrazeno 1 - 10
of 48
pro vyhledávání: '"L. Mariotto"'
Autor:
Ghendy Cardoso, Adriano Peres de Morais, L. Mariotto, Aecio de Lima Oliveira, Olinto César Bassi de Araújo
Publikováno v:
International Journal of Electrical Power & Energy Systems. 77:372-384
This paper proposes a methodology to deal with the fault section estimation problem in electrical power systems. The main motivation for this study lies in the fact that operators of control centers usually are subject to information overload during
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e22226f1b646df092518cf6aa570384
https://doi.org/10.1016/j.ijepes.2015.11.090
https://doi.org/10.1016/j.ijepes.2015.11.090
Publikováno v:
IEEE Transactions on Power Delivery. 31:138-146
This paper aims to present a passive island detection technique for synchronous distributed generation (DG). The technique is based on frequency oscillation estimation in order to distinguish the islanding from other events that may occur in distribu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f197650e52f1162cf25522079ac2b8f6
https://doi.org/10.1109/tpwrd.2015.2438251
https://doi.org/10.1109/tpwrd.2015.2438251
Publikováno v:
Electric Power Systems Research. 130:124-131
Anti-islanding protection is one of the most important requirements for the connection of distributed generators in power systems. This paper proposes an algorithm to detect unintentional islanding in power systems with distributed generation. It is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58b6108f9f8d923633903b2e48057653
https://doi.org/10.1016/j.epsr.2015.08.025
https://doi.org/10.1016/j.epsr.2015.08.025
Publikováno v:
IET Science, Measurement & Technology. 9:836-841
There are a few components of the current signal that may lead to inaccurate current measurement in power systems, and therefore, may cause malfunction on numerical protective relays and control devices. Some of these components include harmonics, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b9b7cda22e15d9e04b40844ada73a05
https://doi.org/10.1049/iet-smt.2014.0312
https://doi.org/10.1049/iet-smt.2014.0312
Publikováno v:
Electric Power Systems Research. 127:118-125
This work presents a binary programming model for online coordination of directional overcurrent relay problems in interconnected power distribution and subtransmission systems. The proposed model considers discrete time dial and pickup current setti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac4e660e185f2bb92be2265679b30289
https://doi.org/10.1016/j.epsr.2015.05.017
https://doi.org/10.1016/j.epsr.2015.05.017
Publikováno v:
Electric Power Systems Research. 122:10-18
This paper presents a new algorithm for transmission line distance relaying, tolerant to power swings. The distinction between a short circuit and power oscillation is accomplished with the use of a morphological transform. With this feature it is po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66bc68722513a67d6e9abfceb315a5fc
https://doi.org/10.1016/j.epsr.2014.12.009
https://doi.org/10.1016/j.epsr.2014.12.009
Autor:
P. Aulestia-Viera, Pablo Agustin Vargas, Gustavo Grothe Machado, L. Mariotto, Márcio Ajudarte Lopes, M. Bertotti, A.C. Rocha, G.L.A. Paiva
Publikováno v:
International Journal of Oral and Maxillofacial Surgery. 48:88
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7477cfc3dfc47706ebb965a319d3719
https://doi.org/10.1016/j.ijom.2019.03.266
https://doi.org/10.1016/j.ijom.2019.03.266
Autor:
Gustavo Marchesan, L. Mariotto, Eduardo Machado dos Santos, Ghendy Cardoso, Natanael Rodrigues Gomes
Publikováno v:
Journal of Control, Automation and Electrical Systems. 24:493-503
Frequency estimation has a great importance for protection services, power quality, and in the operation of an electric power system. This paper describes and analyzes six methods used in frequency estimation. The techniques were tested by employing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07d4ff4f2582566219fbd4738661df0e
https://doi.org/10.1007/s40313-013-0037-y
https://doi.org/10.1007/s40313-013-0037-y
Publikováno v:
Electric Power Systems Research. 81:1144-1150
A new numerical distance relaying algorithm based on Mathematical Morphology and a Least-Square Curve Fitting has been proposed. It makes use of morphological operators to detect and classify the faults and a Curve Fitting method to estimate the faul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1c0ff6400c1b5e81485faa6f0c1e293
https://doi.org/10.1016/j.epsr.2011.01.003
https://doi.org/10.1016/j.epsr.2011.01.003
Publikováno v:
IEEE Transactions on Power Delivery. 25:2197-2204
A new loss-of-excitation protection based on fuzzy set theory has been presented. It makes use of conventional concepts of loss-of-excitation protection in synchronous generators (i.e., the behavior of internal voltage and apparent impedance trajecto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eeb00d9d6afcadc57b0d66c7da33c58a
https://doi.org/10.1109/tpwrd.2010.2051462
https://doi.org/10.1109/tpwrd.2010.2051462