HIGH-PERFORMANCE RIPPLE FEEDBACK FOR THE BUCK UNITY-POWER-FACTOR RECTIFIER

被引：32

作者：

LO, YW

KING, RJ

机构：

[1] Department of Electrical Engineering, University of Toledo, Toledo

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 1995年 / 10卷 / 02期

关键词：

D O I：

10.1109/63.372600

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：

The buck unity-power-factor rectifier has harmonic-free input current with complete load regulation down to zero output voltage. A new ''nonlinear ripple feedback'' is proposed which exactly cancels the spoiling effect of dc-side current ripple on the low-distortion ac line current waveforms, even for large amounts of ripple. This cancellation is independent of operating point and readily implemented with analog hardware, thereby permitting economies in the design of the dc filter while maintaining harmonic-free operation. Both large-single and incremental analyses of the rectifier are given. Confirming experimental results from a 1-kW 48-V isolated battery charger operating with current-ripple levels ranging from 50% to discontinuous-conduction-mode operation are given.

引用

页码：158 / 163

页数：6