NDLI: Steady-State Analysis and Modeling of Power Factor Correctors With Appreciable Voltage Ripple in the Output-Voltage Feedback Loop to Achieve Fast Transient Response

Content Provider	IEEE Xplore Digital Library
Author	Sebastian, J. Lamar, D.G. Hernando, M.M. Rodriguez-Alonso, A. Fernandez, A.
Copyright Year	1986
Abstract	The classical design of an active power factor corrector (PFC) leads to slow transient response in this type of converter. This is due to the fact that the compensator placed in the output-voltage feedback loop is usually designed to have narrow bandwidth to filter the voltage ripple of twice the line frequency coming from the PFC output. This feedback loop is designed with this filtering effect because a relatively high ripple would cause considerable distortion in the reference of the line current feedback loop, and hence in the line current. However, the transient response of the PFC can be substantially improved if the bandwidth of this compensator is relatively wide, thus permitting certain distortion in the line current that leads to a tradeoff between transient response (and hence voltage ripple at the output of the compensator) and harmonic content in the line current. As a consequence of the voltage ripple at the output of the compensator (which is considered the control signal), both the static and the dynamic behaviors of the PFC change in comparison with the standard case, i.e., with no voltage ripple on the control signal. The static behavior of a PFC with appreciable voltage ripple in the output-voltage feedback loop is studied in this paper using two parameters: the amplitude of the relative voltage ripple on the control signal and its phase lag angle. The total power processed by the PFC depends on these parameters, which do not vary with the load and which determine the total harmonic distortion and the power factor at the input of the PFC. Furthermore, these parameters also determine the maximum power that can be processed by the converter while still complying with EN 61000-3-2 regulations for Class A and Class B equipment. When the converter comply with the aforementioned regulations for Class C or Class D equipment, however, the compliance does not depend on the power processed by the PFC. In the case of Class C equipment, not all the possible combinations of the relative ripple of the control signal and its phase lag angle manage to comply with these regulations. Finally, the study was verified by simulation and in a real prototype.
Sponsorship	IEEE Power Electronics Society
Starting Page	2555
Ending Page	2566
Page Count	12
File Size	1819397
File Format	PDF
ISSN	08858993
Volume Number	24
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Steady-state Reactive power Feedback loop Transient response Voltage control Bandwidth Active filters Frequency Filtering Harmonic distortion power supplies AC–DC power conversion modeling
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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