Unusual voltage sag event detection in power systems

Three multivariate statistical tools (principal component analysis, factor analysis, analysis discriminant) have been tested to characterize and model the sags registered in distribution substations. Those models use several features to represent the magnitude, duration and unbalanced grade of sags....

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Detalles Bibliográficos
Autores: Barrera Núñez, Víctor Augusto, Meléndez i Frigola, Joaquim, Herraiz Jaramillo, Sergio, Sánchez Losada, L.
Tipo de recurso: artículo
Fecha de publicación:2008
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/2574
Acceso en línea:http://hdl.handle.net/10256/2574
Access Level:acceso abierto
Palabra clave:Anàlisi multivariable
Energia elèctrica -- Distribució -- Alta tensió
Electric power distribution -- High tension
Multivariate analysis
Descripción
Sumario:Three multivariate statistical tools (principal component analysis, factor analysis, analysis discriminant) have been tested to characterize and model the sags registered in distribution substations. Those models use several features to represent the magnitude, duration and unbalanced grade of sags. They have been obtained from voltage and current waveforms. The techniques are tested and compared using 69 registers of sags. The advantages and drawbacks of each technique are listed