NDLI: Power factor correction in single phase AC-DC conversion: control circuits for performance optimization

Content Provider	IEEE Xplore Digital Library
Author	Anunciada, V. Borges, B.
Copyright Year	2004
Description	Author affiliation: Inst. de Telecomunicacoes, Lisboa, Portugal (Anunciada, V.; Borges, B.)
Abstract	AC-DC conversion with power factor correction may use several well known power circuits (boost, half-bridge and full-bridge), or some single stage converters, in the case of switch mode power supplies. All of them present the same control problem: an accurate control of the input current and the simultaneous control of the voltage across the energy storage capacitor. The control of the voltage at the storage capacitor presents a high response time or a reduced gain, in order to avoid a significant distortion of the input current, with a dominant harmonic at the double of line frequency. In the case of switch mode power supplies, the storage capacitor is designed to perform a required stand-on time and, consequently, is bulky and expensive. This paper presents a survey of the more recent pulse width modulators used in the PFC circuits, namely UCI modulators and the design objectives of those control circuits and their main limitations. It is also presented a new technique for capacitor voltage sampling that permit an important reduction of the response time of the voltage regulators. The stability conditions for PI regulators with sampled feedback are presented. Experimental results obtained with a full-bridge single stage converter are also presented.
Sponsorship	IEEE Power Electon. Soc
Starting Page	3775
Ending Page	3779
File Size	369536
Page Count	5
File Format	PDF
ISBN	0780383990
ISSN	02759306
DOI	10.1109/PESC.2004.1355142
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-06-20
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power factor correction Circuits Optimization Switches Voltage control Capacitors Pulse width modulation Power supplies Delay Regulators
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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