一种无中间滤波环节的AC/DC变换器的研究  

Study of a Kind of AC/DC Converter without Medium Filter

作　　者：魏炜[1] 李晓帆[1] 高奇峰[1] 曹承洁[1] 

机构地区：[1]华中科技大学电力电子研究中心,湖北武汉430074

出　　处：《通信电源技术》2004年第3期5-7,共3页Telecom Power Technology

摘　　要：采用三相不控整流的低压大电流的AC/DC变换器,需要一级中间滤波器除去电压脉动,通常滤波器体积重量都比较大。文中介绍一种利用顺馈原理减小该滤波器的控制方案,对电路的工作原理进行了详细分析,并通过实验验证了该方案的可行性和实用性。Low voltage-high current AC/DC converter using three-phase uncontrolled rectifier needs a medium filter to remove pulsating voltage. Usually the filter is heavy and huge. This paper presents a scheme using positive feedback to reduce the volume and weight of the medium filter. The principle of the circuit is analyzed and the feasibility and practicability of the scheme are testified by experiment.

关 键 词：AC/DC变换器 电压脉动 滤波器 

分 类 号：TM46[电气工程—电器]