摘要
提出了一种带三相PFC的准单级AC/DC变换器拓扑。该拓扑具有所有功率开关均为软开关 ,输出二极管电压应力低和输入输出滤波器小的特点。一个 380VAC± 30 %输入、4 0~ 6 0VDC输出、整机效率为 93%的 6kW样机验证了该拓扑输入电流的谐波满足IEC6 10 0 0 3 2ClassA标准。实验结果显示该拓扑具有成本低、体积小、重量轻。
This paper presents a novel quasi single stage topology for three phase input AC/DC converter with power factor correction (PFC). There are soft switching conditions of all switches, low voltage stresses on the output diodes, and smaller input and output filters in this topology. A 6kW prototype with 380V AC±30% input, 40~60V DC output has been built and efficiency is about 93%. The input harmonic current meet IEC61000-3-2 Class A standard, and total harmonic distortion level is about 10% at rated input voltage. Experimental results show the novel AC/DC converter with PFC has the advantage of low cost, small volume, light weight and high efficiency.
出处
《电力电子技术》
CSCD
北大核心
2002年第3期29-32,共4页
Power Electronics
关键词
变换器
功率因数
校正/准单极
软开关
converter
power factor
correction
quasi single stage
soft switching