基于耦合电感的低输人电流纹波BoostPFC电路

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中图分类号：TN624-34 文献标识码：A 文章编号：1004-373X（2025）20-0074-07

Abstract：Inthisresearch，amethod thatincorporatesinductorsandcapacitorsasaninput currentripplecancellation network basedon traditionalBoostpowerfactorcorrction （PFC）convertersisproposed.Thetraditional BoostPFCinductoris replacedwithcoupledinductors，andcombinedwithauxiliaryinductorsandcapacitorbranchestoreduceinputcurentriple. Small-signalanalysisresultsshowthatthisconvertercanexhibitstaticanddynamiccharacteristicssimilartothoseofraditional BoostPFCs.Thesimulationanalysisindicatesthatthepowerfactor（PF）of theimprovedBostPFCisO.999andthetotal harmonic distortion （THD） is less than 5% .Atesting prototype with a rated power of 3Oo W，aninput of 22OV AC，and an output of 400V was built by means of the NCP1654chip with single-cycle control.The experimental results show that this converter has advantages of low input current ripple，high power factor，and low THD.

Keywords：powerfactorcorrection；low inputcurrentripple；coupled inductor;total harmonics distortion;singlecycle control;ripplecancellation

0 引言

PF值[4]

随着电力电子行业的快速发展，连接电网的电力电子设备成为向电网注入谐波的主要来源，电网谐波污染日益严重。（剩余7832字）