一种新型无桥双Boost PFC变换器  

A New Bridgeless Double Boost PFC Converter

作　　者：纪丙华 龚超 黄学龙 张靖维 JI Bing-hua;GONG Chao;HUANG Xue-long;ZHANG Jing-wei(Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学信息学部,北京100124

出　　处：《电力电子技术》2018年第12期129-132,共4页Power Electronics

基　　金：国家电网公司科技项目(5455DW150012);北京工业大学研究生科技基金(ykj-2016-00174)~~

摘　　要：针对电力系统传统电源设备功率因数低、输出电流脉动大、电源谐波中高次谐波多的不足,提出一种新型无桥双Boost功率因数校正(DBPFC)变换器。分析了该新型无桥DBPFC变换器工作原理和过程,与传统Boost功率因数校正(PFC)变换器相比,该变换器在电感充电回路中仅有一个开关管导通,可有效减小变换器自身功率损耗,同时在输出端加入无源电感,能很好地抑制电流谐波,有效削弱输出电流纹波,满足高精度恒流输出和低谐波分量的要求。最后通过仿真结果验证了所提电路的正确性和可行性。A new type of bridgeless double Boost power factor correction (DBPFC)converter is proposed for power system traditional power supply with low power factor,large output current ripple and high power harmonics.The operation principle and process of the new bridgeless DBPFC converter are analyzed.Compared with traditional Boost power factor correction (PFC)converter,the converter has only one switch in the inductive charging circuit,which can effectively reduce the power loss of the converter.While adding a passive inductor at the output,it can be a good suppression of current harmonics,effectively weaken the output current ripple to meet high precision constant current output and low harmonic components.Finally,the simulation verify the correctness and feasibility of the proposed circuit.

关 键 词：变换器 功率因数校正 电流纹波 

分 类 号：TM46[电气工程—电器]