三相单级高功率因数软开关AC/DC变换器  

Novel High-Power Three-Phase Single-Stage Unity-Power-Factor AC/DC Converter with Soft-Switching

作　　者：黄念慈[1] 段述江[1] 凡木文[1] 白三中[1] 

机构地区：[1]四川大学,四川成都610065

出　　处：《电力电子技术》2005年第6期22-24,34,共4页Power Electronics

摘　　要：采用伪相移式全桥零电压零电流(PPS-FB-ZVZCS)变换器完成三相功率因数校正(PFC)和输出电压调节双重功能,并能有效抑制直流母线电压。本文对其进行了理论分析、关键参数计算、计算机仿真和实验室样机实验验证。实验表明,其最大输出功率为10kW,功率因数达到0.99,轻载时直流母线电压小于800V。The PFC and the output voltage modulation are simultaneously achieved in use of a pseudo-phase-shiftingfull bridge converter （PPS-FB-ZVZCS） with zero-voltage-zero-current switching as well as restraining the DC-link voltage. Its operation principle,calculation of key parameters,computer simulation and experiment results of a 10kW prototype are presented.The DC-link voltage is below 800V and the power factor of the system is above 0.99.

关 键 词：功率因数 变换器/软开关 

分 类 号：TM464[电气工程—电器] TM714.3