DCM模式APFC电路寄生参数对THD的影响  

Effect of Parasitic Parameters on the Line Current Distortion in DCM APFC Circuit

作　　者：熊飞[1] 张军明[1] 钱照明[1] 

机构地区：[1]浙江大学,浙江杭州310027

出　　处：《电力电子技术》2010年第7期15-17,共3页Power Electronics

摘　　要：有源功率因数校正(APFC)技术广泛应用于提高电网适应能力及减小谐波污染的场合,其性能与工作模式及参数设计密切相关。提出基于Boost电感电流数学模型,其分析方法弥补了传统周期平均电流模型不精确、分析范围小的不足,并利用该数学模型系统分析了在断续导通模式(DCM)下Boost PFC电路主要元器件寄生参数对输入电流畸变(THD)的影响。实验验证了理论分析的正确性。Active power factor correction（APFC）converter performance closely relates to its operation mode and parame-ters design.This paper presents a novel analytical method based on inductor switching current model,and has a systematic analysis about the parasitic parameters effect on total harmonic distortion（THD）of line current in discontinuous conduc-tion mode（DCM）.The novel model has the advantages of accurateness and multiple parameter analysis.The experimental results confirme the validity of the mathematic model and theory analysis results.

关 键 词：有源功率因数校正 断续导通模式 总谐波畸变率 寄生参数 

分 类 号：TM714.3[电气工程—电力系统及自动化]