A NEW ZVS-PWM UNITY POWER-FACTOR RECTIFIER WITH REDUCED CONDUCTION LOSSES

被引：88

作者：

DESOUZA, AF

BARBI, I

机构：

[1] Department of Electrical Engineering, Power Electronics Institute, Federal University of Santa Catarina, 88040-970 Flo-, rianópolis SC

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 1995年 / 10卷 / 06期

关键词：

Electric commutation - Electric current control - Electric losses - Electric power factor - Power converters - Pulse width modulation;

D O I：

10.1109/63.471294

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 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.

引用

页码：746 / 752

页数：7