DocumentCode :
2757596
Title :
A voltage-sensorless PFC voltage doubler
Author :
Yamamoto, Jun ; Miyashita, Osamu ; Yoshida, Takafumi
Author_Institution :
Tokyo Denki Univ., Tokyo, Japan
fYear :
2012
fDate :
4-6 Sept. 2012
Abstract :
This paper proposes a voltage-doubling rectifier, or voltage doubler, with power factor correction (PFC) function and without voltage sensors on the ac and dc sides. The rectifier only uses an ac-side current sensor. The voltage information required for the PFC control is obtained from the ac-side current and its derivative in the on and off durations of the switching devices. The control of the switching devices is based on a pulsewidth prediction technique. The power factor of the rectifier is more than 99% over a wide load range. A method for balancing the two output voltages is also considered. Furthermore, transient performance is shown and discussed for load variations. The rectifier is suitable especially for a half-bridged inverter that requires a dual power supply. The practicability of the proposed voltage-doubling rectifier is confirmed by simulation and experiment.
Keywords :
invertors; power factor correction; rectifying circuits; voltage dividers; PFC control; ac-side current sensor; half-bridged inverter; power factor correction function; pulsewidth prediction technique; switching devices; voltage sensors; voltage-doubling rectifier; voltage-sensorless PFC voltage doubler; Capacitors; Harmonic analysis; Power harmonic filters; Reactive power; Rectifiers; Switches; Voltage control; Voltage doubler; power factor correction; voltage-sensorless control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics and Motion Control Conference (EPE/PEMC), 2012 15th International
Conference_Location :
Novi Sad
Print_ISBN :
978-1-4673-1970-6
Electronic_ISBN :
978-1-4673-1971-3
Type :
conf
DOI :
10.1109/EPEPEMC.2012.6397336
Filename :
6397336
Link To Document :
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