DocumentCode :
1169720
Title :
A unity power factor current-regulated SPWM rectifier with a notch feedback for stabilization and active filtering
Author :
Dai, Shu-Zu ; Lujara, Nelson ; Ooi, Boon-Teck
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
Volume :
7
Issue :
2
fYear :
1992
fDate :
4/1/1992 12:00:00 AM
Firstpage :
356
Lastpage :
363
Abstract :
A stand-alone, unity power factor, current-regulated sinusoidal pulsewidth modulated (SPWM) rectifier is described. The topology is based on the series connection of three four-valve single-phase bridges, which allows the conventional two-stage logic SPWM strategy to be used without interphase interference. The problems of stability and low harmonic waveform distortion are identified. Solutions are found by using a simple local notch filter feedback circuit that fulfils the dual function of stabilizing and active filtering. From the clarification given by this more expensive but less constrained topology, the stage is set for the next step in incorporating the lessons learned to the more economical topology based on the six-valve, three phase parallel bridge, which requires a tristate logic for PWM control when operating in the current-source configuration
Keywords :
bridge circuits; control system analysis; electric current control; feedback; harmonics; notch filters; power factor; pulse width modulation; rectifiers; stability; PWM; active filtering; bridge circuits; current control; harmonic waveform distortion; notch feedback; notch filter; rectifier; sinusoidal pulsewidth modulated; stability; stabilization; three phase; topology; tristate logic; unity power factor; Active filters; Bridge circuits; Circuit topology; Interference; Logic; Pulse modulation; Pulse width modulation; Reactive power; Rectifiers; Space vector pulse width modulation;
fLanguage :
English
Journal_Title :
Power Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8993
Type :
jour
DOI :
10.1109/63.136250
Filename :
136250
Link To Document :
بازگشت