寄生参数对有源功率因数校正器电流畸变的影响  

Effect of Parasitic Parameters on Current Distortion of Boost PFC Circuit

作　　者：熊飞[1] 张军明[1] 钱照明[1] 

机构地区：[1]浙江大学电气工程学院,浙江省杭州市310027

出　　处：《中国电机工程学报》2010年第21期40-47,共8页Proceedings of the CSEE

摘　　要：单相有源功率因数校正技术已广泛应用于中小功率场合,其性能与控制方式、工作模式及参数设计均有密切联系。分析各种模式下电路寄生参数对输入电流谐波畸变的影响。在断续工作模式下,针对传统的开关周期平均电流模型分析结果不精确、分析范围小的不足,提出基于Boost电感电流数学模型的分析方法,并结合三角傅里叶变换分析了电路主要寄生参数(包括寄生电容、线路损耗等)对输入电流畸变的影响。实验验证了数学模型的有效性和理论分析的正确性。Single phase active power-factor correction （APFC） technology has been widely adopted in low to medium power application. The performance of the APFC converter is heavily related to its control scheme,operation mode and parameters design. Systematic analysis of the circuit parasitic parameters effect on line current total harmonic distortion （THD） in different conduction modes was presented. Due to the traditional analytical method based on the average inductor current model suffers from inaccurate and single parameter analysis,a theoretical analysis model was presented based on the inductor switching current in discontinuous conduction mode （DCM）. The effect of main circuit parasitic parameters suth as parasitic capacitor and circuit loss,on the line current THD were analyzed. The effectiveness of the mathematic model and the validity of the theory analysis are verified by the experimental results.

关 键 词：有源功率因数校正器 寄生参数 傅里叶分析 谐波总畸变 电感电流数学模型 

分 类 号：TM85[电气工程—高电压与绝缘技术]