Fast controller for a unity-power-factor PWM rectifier

This paper presents an analog implementation of a fast controller for a unity-power-factor (UPF) PWM rectifier. The best settling times of many popular controllers for this type of power converter are on the order of a few line cycles, corresponding to bandwidths under 20 Hz. The fast controller dem...

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Bibliographic Details
Published in:IEEE transactions on power electronics 1996-01, Vol.11 (1), p.1-6
Main Authors: Eissa, M.O., Leeb, S.B., Verghese, G.C., Stankovic, A.M.
Format: Article
Language:English
Subjects:
Analog-digital conversion
Applied sciences
Bandwidth
Capacitors
Controllers
Electrical engineering. Electrical power engineering
Electronics
Exact sciences and technology
Power electronics, power supplies
Power supplies
Pulse width modulation
Reactive power
Rectifiers
Steady-state
Switching frequency
Voltage control
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Summary:This paper presents an analog implementation of a fast controller for a unity-power-factor (UPF) PWM rectifier. The best settling times of many popular controllers for this type of power converter are on the order of a few line cycles, corresponding to bandwidths under 20 Hz. The fast controller demonstrated in this paper can exercise control action at a rate comparable to the switching frequency rather than the line frequency. In order to accomplish this while maintaining unity power factor during steady-state operation, the fast controller employs a ripple-feedback cancellation scheme.
ISSN:0885-8993
1941-0107
DOI:10.1109/63.484410