Artigo em periódico
Application of a robust faulted phase selector to high-resistance and weak-infeed fault conditions on a 1000-kV UHV transmission line
ESPINOZA, RENZO FABIÁN2021 ESPINOZA, RENZO FABIÁN; DIAS, OZENIR; TAVARES, MARIA C.; MOLINA, YURI P
Resumo
Resumo
Abstract This work proposes the use of a novel faulted phase-selection phasor-based algorithm to solve the high-resistance and weak-infeed fault condition selection problem in existent long compensated transmission lines. The algorithm was originally developed for future half-wavelength lines (3000 km for 50 Hz system or 2500 km for 60 Hz), and was slightly modified and tested in a real 645 km 1000 kV Ultra High Voltage transmission system. The algorithm was implemented in a programmable protective relay and tested using a real-time simulator. A series of tests under extreme conditions (such as high impedance fault and very week infeed system together) were conducted to evaluate the performance and robustness of the proposed algorithm.
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palavras-chave
Palavras-chave
faulted phase selectionhigh-resistance faultsultra-high voltage transmission linesprotective relaysreal-time simulation
Volume
197
Páginas
107244
Editora
Elsevier BV
Status
Published
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Artigo em periódico