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Dynamic limits of a power-factor preregulator

Autor(es) y otros:
Fernández González, Arturo JoséAutoridad Uniovi; Sebastián Zúñiga, Francisco JavierAutoridad Uniovi; Villegas Saiz, Pedro JoséAutoridad Uniovi; Hernando Álvarez, Marta MaríaAutoridad Uniovi; González Lamar, DiegoAutoridad Uniovi
Fecha de publicación:
2005
Versión del editor:
http://dx.doi.org/10.1109/TIE.2004.841136
Citación:
IEEE Transactions on Industrial Electronics, 52(1), p. 77-87 (2005); doi:10.1109/TIE.2004.841136
Descripción física:
p. 77-87
Resumen:

Power-factor correction has been one of the hottest topics during the last few years and, hence, many new circuits have appeared. In general, it is assumed that preregulators based on multiplier circuits have poor dynamics and, then, a second stage is needed to improve the output voltage dynamic behavior. The other option is the use of single-stage topologies which have fast output voltage regulation although the input current waveform is not sinusoidal. This work presents an analysis of the dynamic behavior of a conventional power-factor preregulator. The objective is to find the limits of the dynamic characteristics of these circuits when the priority is to improve the output voltage regulation and not the total harmonic distortion or the power factor. A large-signal model is presented and the theoretical results are validated with a prototype

Power-factor correction has been one of the hottest topics during the last few years and, hence, many new circuits have appeared. In general, it is assumed that preregulators based on multiplier circuits have poor dynamics and, then, a second stage is needed to improve the output voltage dynamic behavior. The other option is the use of single-stage topologies which have fast output voltage regulation although the input current waveform is not sinusoidal. This work presents an analysis of the dynamic behavior of a conventional power-factor preregulator. The objective is to find the limits of the dynamic characteristics of these circuits when the priority is to improve the output voltage regulation and not the total harmonic distortion or the power factor. A large-signal model is presented and the theoretical results are validated with a prototype

URI:
http://hdl.handle.net/10651/19524
ISSN:
0278-0046
DOI:
10.1109/TIE.2004.841136
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