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Doctoral Thesis
DOI
10.11606/T.3.2006.tde-13032007-010055
Document
Author
Full name
Giovanni Manassero Junior
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2006
Supervisor
Committee
Senger, Eduardo Cesar (President)
Coury, Denis Vinicius
Jardini, José Antonio
Pereira, Carlos Eduardo de Morais
Rocco, Alexandre
Title in Portuguese
Sistema para localização de faltas em linhas de transmissão com subestações conectadas em derivação.
Keywords in Portuguese
Linhas de transmissão de energia elétrica
Proteção de sistemas elétricos
Subestações elétricas
Abstract in Portuguese
Este trabalho tem por objetivo apresentar o desenvolvimento e a implementacao em uma rotina computacional, de algoritmos para a localizacao de faltas em linhas de transmissao com subestacoes conectadas em derivacao. Os algoritmos propostos neste trabalho integram uma metodologia para localizacao de faltas, que e capaz de identificar corretamente o ponto de ocorrencia do defeito utilizando as componentes de fase dos fasores de tensoes e correntes, calculadas atraves dos registros desses sinais, efetuados por oscilografos digitais e/ou reles de protecao instalados nos terminais da linha de transmissao. Alem disso, a metodologia para localizacao de faltas tem acesso aos parametros eletricos da linha e informacoes sobre o tipo de ligacao e o carregamento dos transformadores conectados aos terminais das derivacoes. Este trabalho apresenta tambem o desenvolvimento dos modelos para os elementos do sistema de transmissao, em componentes de fase. Estes modelos sao utilizados pelos algoritmos que integram a metodologia para localizacao de faltas.
Title in English
Fault location system for multi-terminal transmission lines.
Keywords in English
Power system protection
Power transmission lines
Substations
Abstract in English
This research presents the development and implementation in a computational routine, of algorithms for fault location in multi-terminal transmission lines. The algorithms proposed in this work are part of a fault location methodology, which is capable of correctly identifying the fault point based on voltage and current phase components. The voltage and current phasors are calculated using measurements of voltage and current signals from intelligent electronic devices, located on the transmission line terminals. The algorithms have access to the electrical parameters of the transmission lines and to information about the transformers loading and their connection type. This work also presents the development of phase component models for the transmission system elements used by the fault location algorithms, that are part of the fault location methodology.
 
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Publishing Date
2007-03-13
 
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