Power factor preregulators with improved dynamic response

Author

Spiazzi, Giorgio ; Mattavelli, Paolo ; Rossetto, Leopoldo

Author_Institution

Dipartimento di Elettronica e Inf., Padova Univ., Italy

Volume

12

Issue

2

fYear

1997

fDate

3/1/1997 12:00:00 AM

Firstpage

343

Lastpage

349

Abstract

An improved control strategy of standard power factor preregulators (PFPs) is proposed which allows fast output voltage response while maintaining a high power factor. This is obtained by compensating for the intrinsic low-frequency output voltage ripple, thus allowing a higher bandwidth of the output voltage control loop. This method does not require additional sensing, but only a multiplier and simple analog circuitry, and works well with a universal input voltage range. Experimental tests on a boost power converter with average current control confirm the validity of the approach

Keywords

DC-DC power convertors; control system analysis; control system synthesis; dynamic response; harmonic distortion; power factor correction; power system harmonics; voltage control; analog circuitry; average current control; boost power converter; control design; control simulation; control strategy; dynamic response improvement; experimental tests; intrinsic low-frequency output voltage ripple compensation; multiplier; output voltage control loop bandwith; output voltage response; power factor preregulators; universal input voltage range; Bandwidth; Circuits; Current control; Frequency; IEC standards; Phase estimation; Phase locked loops; Reactive power; Topology; Voltage control;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.558761

Filename

558761