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Conmutación simétrica del rectificador aplicado a microcentrales hidroeléctricas

Authors: Bory Prevez, Henry; Martínez García, Herminio; Vazquez Seisdedos, Luis;

Conmutación simétrica del rectificador aplicado a microcentrales hidroeléctricas

Abstract

En el presente trabajo se analizó un rectificador trifásico tipo puente con un interruptor en serie con la carga conmutado con ángulo simétrico, con respecto a los índices corriente eficaz, potencia activa, reactiva, aparente, de distorsión y factor de potencia. El objetivo es aplicar este rectificador conmutado con ángulo simétrico para el mejoramiento del factor de potencia en microcentrales hidroeléctricas que operan en régimen autónomo (aisladas del sistema eléctrico), en las que se regulan la frecuencia variando la potencia disipada en cargas lastres mediante convertidores de corriente alterna en corriente alterna (CA-CA). Las expresiones de los índices anteriores del convertidor de CA-CA son resumidos. Se calculó un ejemplo en el cual es desarrollado un caso de estudio donde ambos convertidores son comparados para un punto de operación, luego mediante los resultados de simulación se obtiene que con el circuito rectificador trifásico conmutando el interruptor con ángulo simétrico, se logra una mejora del factor de potencia a la salida del generador en el 94,5% del intervalo de variación de la potencia activa consumida por los usuarios, demostrando la ventaja del circuito rectificador con respecto al factor de potencia del sistema eléctrico.

Country
Spain
Keywords

Convertidor de CA-CA, Control de Frecuencia., Electric power plants, Control de Frecuencia, Conmutación Simétrica, Rectificador Trifásico, :Enginyeria electrònica [Àrees temàtiques de la UPC], Factor de Potencia, Convertidors de corrent elèctric, Centrals elèctriques, Àrees temàtiques de la UPC::Enginyeria electrònica, Electric current converters

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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