Dynamic limits of a power-factor preregulator

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 beh...

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Bibliographic Details
Published inIEEE transactions on industrial electronics (1982) Vol. 52; no. 1; pp. 77 - 87
Main Authors Fernandez, A., Sebastian, J., Villegas, P., Hernando, M.M., Lamar, D.G.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.02.2005
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Capacitors
Circuit topology
Circuits
Control
DC-DC power converters
Dynamic tests
Dynamics
Electric potential
EN 61000-3-2 regulations
fast dynamics
Harmonic distortion
Low pass filters
Power harmonic filters
power-factor correction
Prototypes
Reactive power
resistor emulator
Resistors
Total harmonic distortion
two-stage circuits
Voltage
Voltage control
Waveforms
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Summary: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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2004.841136