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Control digital basado en AFC de un rectificador trifásico PWM

Authors: Orellana Barceló, Marcos; Griñó Cubero, Robert;

Control digital basado en AFC de un rectificador trifásico PWM

Abstract

La operación de los convertidores de potencia conectados a la red eléctrica está sometida cada vez a más condicionantes (reducción de armónicos, funcionamiento en presencia de sags y swells, altas impedancias de red, etc.). El desafío para los controladores es grande, puesto que deben ser suficientemente robustos para asegurar la estabilidad del sistema, sobre todo cuando las condiciones de trabajo no son ideales. En este artículo, se propone una técnica de control en tiempo discreto para un convertidor trifásico de tres hilos basada en Adaptive Feed-forward Cancellation (AFC). Dado que el sistema va a ser controlado mediante un controlador digital, el método de diseño para los resonadores ha sido trasladado a tiempo discreto. De esta forma, el controlador se ha diseñado por completo de forma muestreada, evitando versiones aproximadas obtenidas a partir de las expresiones de tiempo continuo y, además, se ha tomado en cuenta el retardo unitario debido al tiempo de computación e implementación del control en el microprocesador. Las simulaciones llevadas a cabo muestran que este tipo de control resonante no solamente es robusto, sino que también presenta buenas prestaciones.

Peer Reviewed

Country
Spain
Related Organizations
Keywords

Power converters, Convertidors de potència

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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).
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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.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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