2015
DOI: 10.1016/j.epsr.2015.04.015
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Stochastic modeling of power system faults

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Cited by 27 publications
(14 citation statements)
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“…In terms of life prediction, scholars [12][13][14] used the rough set theory, cross-entropy theory, stochastic process simulation, and other methods to predict the equipment remaining life, and considered the influence of the external service environment on electrical equipment. Andre et al [15,16] used the Monte Carlo simulation to develop a model for the prediction of fault rate, fault type, and fault duration of transmission line and bus, and forecasted the annual outage times of the power system. Their model was based on the history of fault data, but the influence of the external environment on transmission lines was ignored.…”
Section: Introductionmentioning
confidence: 99%
“…In terms of life prediction, scholars [12][13][14] used the rough set theory, cross-entropy theory, stochastic process simulation, and other methods to predict the equipment remaining life, and considered the influence of the external service environment on electrical equipment. Andre et al [15,16] used the Monte Carlo simulation to develop a model for the prediction of fault rate, fault type, and fault duration of transmission line and bus, and forecasted the annual outage times of the power system. Their model was based on the history of fault data, but the influence of the external environment on transmission lines was ignored.…”
Section: Introductionmentioning
confidence: 99%
“…Then, the damage produced by the voltage reduction, mainly given by short-circuits, motor starting and transformer energizing, can be higher [3]. As a consequence, their detection and classification have become a key issue for power systems operation, since knowledge about these events allows to determine the type of fault [4], and the source of disturbance and its location [5], among others, and to take corrective actions by clearing the fault, mitigating its effects [6] or avoiding repetition. The detection and classification of a voltage event can be automatically performed, by adopting a suitable classification criterion and implementing the corresponding algorithm in a digital signal processor.…”
Section: Introductionmentioning
confidence: 99%
“…Ainda, o emprego de técnicas determinísticas no cálculo das correntes de falta pode culminar em análises econômicas menos viáveis ou conservadoras do dimensionamento do sistema de proteção, justificando-se o emprego de métodos probabilísticos para a determinação das correntes de curto-circuito (SATO, 1995;BRACALE et al, 2012;SANTOS;BARROS, 2015), tal como realizado neste trabalho.…”
Section: Justificativa E Principais Contribuições Desta Pesquisaunclassified
“…Nesse contexto, cabe destacar que esse tipo de abordagem pode levar à obtenção de valores menos condizentes com a realidade das correntes de falta. Consequentemente, essa abordagem pode resultar em restrições técnicas e operativas impostas pelos elevados níveis de curto-circuito calculados (SATO, 1995), ou até mesmo no sobredimensionamento de elementos do sistema (SANTOS; BARROS, 2015). Além disso, como a probabilidade de ocorrência dos fatores associados à falta é desconsiderada, informações quantitativas e qualitativas não são fornecidas para apoiar decisões de investimento (SANTOS; BARROS, 2015).…”
Section: Curto-circuito Probabilísticounclassified
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