电感复用型PFC变换器及其控制策略  

Multiplexing-inductor PFC Converter and Its Control Strategy

作　　者：李浩然 董秀成 陈庚 阎铁生 代莎 LI Haoran;DONG Xiucheng;CHEN Geng;YAN Tiesheng;DAI Sha(School of Electrical Engineering and Electronic Information, Xihua University, Chengdu 610039, China)

机构地区：[1]西华大学电气与电子信息学院

出　　处：《电源学报》2019年第4期50-56,共7页Journal of Power Supply

基　　金：西华大学研究生创新基金资助项目(ycjj2017161)~~

摘　　要：提出一种复用电感导通模式MCM(multiplexing-inductor conduction mode)的概念,对MCM模式下的电感电流进行了详细分析。通过电感复用及MCM的概念,对Boost与Buck的级联结构进行变换,提出了一种电感复用型功率因数校正器MPFC(multiplexing-inductor power factor corrector)变换器的拓扑结构,这种结构减少了电感的数量,使变换器体积减小,节约了成本。MPFC的控制模式分为电流模控制与电压模控制,通过分析这2种控制方式的特点发现,电压模控制的MPFC更适合实际运用。仿真实验表明,MPFC变换器的输入功率因数与输出电压纹波符合一般的工业生产需求,证明了MPFC原理的正确性及实际应用的可实施性。A novel concept of multiplexing-inductor conduction mode ( MCM ) is proposed, and the current of an inductor in MCM mode is analyzed in detail. Based on the concepts of multiplexing-inductor and MCM, a cascade structure of Boost and Buck is transformed, and a topology of multiplexing-inductor power factor corrector ( MPFC ) converter is proposed. With this structure, the number of inductors decreases, thus reducing the converter ’ s size and saving its cost. The control modes of an MPFC converter include current mode control and voltage mode control, and their characteristics are analyzed. Through analysis, it is found that the voltage mode control of the MPFC converter is more suitable for practical use. Simulation results indicate that the input power factor and the output voltage ripple of the MPFC converter meet the general industrial production requirements, which proves the validity of the principle of MPFC and the practicability of its applications in reality.

关 键 词：功率因数校正 拓扑结构 断续导通模式 复用电感导通模式 

分 类 号：TM46[电气工程—电器]