High-efficiency Multiplexed Buck-type PFC Converter  

作　　者：Lunquan Li Qianhong Chen Jichao Huang Bin Liu 

机构地区：[1]School of Automation,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China [2]Gaoyi Zhineng Electric Ltd.,Shenzhen 518101,China [3]School of Information Engineering,Nanchang Hang Kong University,Nanchang 330063,China [4]IEEE [5]CSEE

出　　处：《CSEE Journal of Power and Energy Systems》2024年第3期1053-1063,共11页中国电机工程学会电力与能源系统学报（英文）

基　　金：supported by National Natural Science Foundation of China(61963030).

摘　　要：This paper proposes a high-efficiency PFC rectifier based on multiplexing the switches.Compared with a traditional six-switch PFC rectifier,the proposed rectifier extends the switches’active angle by making use of three bridge rectifiers.As a result,lower conduction resistance can be realized for switches.Consequently,system efficiency can be improved.Compared with a traditional six-switch PFC rectifier with doubled switches,the proposed rectifier can achieve almost the same efficiency improvement while no additional switches are needed.Since continuous inductor current is chopped and resulting current pulses cannot be injected into the grid directly,input filter design and resonance damping are discussed for the proposed rectifier.The controller design of the rectifier is analyzed.The inductor current reference is shaped considering the input voltage envelope and forward duties.Finally,the effectiveness of the proposed rectifier is verified through simulations and experiments.

关 键 词：Buck-type rectifier commutation state controller design efficiency multiplex 

分 类 号：TM46[电气工程—电器]