A new ZVS-PWM unity power factor rectifier with reduced conduction losses

Author

de Souza, Alexandre Ferrari ; Barbi, Ivo

Author_Institution

Dept. of Electr. Eng., Federal Univ. of Santa Catarina, Florianopolis, Brazil

Volume

10

Issue

6

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

746

Lastpage

752

Abstract

This paper introduces a new single-phase high power factor rectifier, which features regulation by conventional PWM, soft commutation and instantaneous average line current control. Furthermore, thanks to the use of a single converter, instead of the conventional configuration composed of a four-diode front-end rectifier followed by a boost converter, a significant reduction in the conduction losses is achieved. A prototype rated at 1.6 kW, operating at 70 kHz, with an input AC voltage of 220 Vrms and an output voltage of 400 V_DC has been implemented in the laboratory. An efficiency of 97.8 % at 1.6 kW has been measured. Analysis, design, and the control circuitry are also presented in the paper

Keywords

DC-DC power convertors; PWM power convertors; commutation; electric current control; losses; power factor; rectifying circuits; switching circuits; 1.6 kW; 220 V; 400 V; 70 kHz; 97.8 percent; ZVS-PWM unity power factor rectifier; conduction losses reduction; high power factor; instantaneous average line current control; reduced conduction losses; single-phase; soft commutation; zero voltage switching; MOSFET circuits; Power MOSFET; Power harmonic filters; Power supplies; Power system harmonics; Pulse width modulation; Reactive power; Rectifiers; Semiconductor diodes; Voltage;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.471294

Filename

471294