Instantaneous-power-based busbar numerical differential protection

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorMoreno Vásquez, Francis Arody-
Autor(es): dc.creatorSilva, Kleber Melo e-
Data de aceite: dc.date.accessioned2021-10-14T17:27:54Z-
Data de disponibilização: dc.date.available2021-10-14T17:27:54Z-
Data de envio: dc.date.issued2019-12-05-
Data de envio: dc.date.issued2019-12-05-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttps://repositorio.unb.br/handle/10482/35913-
Fonte completa do material: dc.identifierhttps://orcid.org/0000-0001-9880-3984-
Fonte completa do material: dc.identifierhttps://orcid.org/0000-0003-0847-4545-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/608521-
Descrição: dc.descriptionThis paper presents a new method for busbar differential protection based on the instantaneous power concept. In order to do so, the instantaneous power per phase of each network element connected to the busbar is computed by using the instantaneous current values and a voltage memory action strategy. The performance of the proposed technique is compared to one of the traditional instantaneous-current-based differential protection algorithms, which is widely used by manufacturers of commercial relays. Both internal and external faults, as well as evolving external-to-internal faults, were simulated in a power substation with double-bus single-breaker configuration using the software ATPDraw. The obtained results reveal that the proposed algorithm is twice or more faster than the traditional instantaneous-currentbased algorithm for most of the internal and evolving external-tointernal faults, while ensuring secure operation for external ones even when severe current transformer (CT) saturation takes place, through a new harmonic power restraint strategy. Also, since the proposed method provides faster fault detection time, the requirements for CT time to saturate may be alleviated, guaranteeing correct operation even in the case of early CT saturation.-
Publicador: dc.publisherIEEE-
Relação: dc.relationhttps://ieeexplore.ieee.org/document/8628998-
Direitos: dc.rightsAcesso Restrito-
Direitos: dc.rights© 2019 IEEE-
Palavras-chave: dc.subjectProteção diferencial-
Palavras-chave: dc.subjectPotência instantânea-
Título: dc.titleInstantaneous-power-based busbar numerical differential protection-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional – UNB

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