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1、IEEETRANSACTIONSONPOWERDELIVERY,VOL.20,NO.2,APRIL20051507ANovelActivePowerFilterforHarmonicSuppressionHurng-LiahngJou,Member,IEEE,Jinn-ChangWu,Yao-JenChang,andYa-TsungFengAbstract—Inthispaper,anovelactivepowerfilterisproposedAmongthoselistedabove,theseries/parallelresonan
2、ceistheandimplementedbyusingavoltage-sourcepowerconverterwithmostseriousdisadvantage.Itmayresultinover-current/over-aseriesconnectedinductorandcapacitorset.Thepowerconvertervoltageontheinductorandcapacitorcausingdamagetothepas-iscontrolledtogenerateacompensatingvoltageth
3、atisconvertedsivepowerfilter.Sincethesystemimpedancehasasignificantintoacompensatingcurrentviatheseriesconnectedinductorandcapacitorset.Thecompensatingcurrentflowsintothepowereffectontheperformanceofpassivepowerfilter,itisveryhardfeederinordertosuppresstheharmoniccurrentsgen
4、eratedbytoobtainanexcellentfilterperformanceinpracticalapplica-nonlinearloads.Thesalientadvantagesoftheproposedactivetions.Moreover,theharmoniccurrentproducedbyneighboringpowerfilterarelowervoltageratingofdccapacitorandpowernonlinearloadsmayflowintothepassivepowerfilterandre
5、sultswitchingdevices,smallerfilterinductor,smallerdimension,intheoverloadofthepassivepowerfilter.lightweight,betterfilterperformanceandlowelectromagneticinterference(EMI).Athree-phase100kVAactivepowerfilterRecently,theharmonicsuppressionfacilitiesbasedonpowerisdevelopedtodem
6、onstratetheperformanceoftheproposedelectronictechniquehavebeendeveloped.Theseactivehar-method.Theresultsshowthattheproposedactivepowerfilterhasmonicsuppressionfacilitiesknownasactivepowerfiltercantheexpectedperformance.suppressthedifferentorderharmoniccomponentsofnonlinear
7、IndexTerms—Activepowerfilter,harmonic.loadssimultaneously[3]–[14].Accordingtothepowercircuitconfigurationsandconnections,theactivepowerfiltercanbedividedintoparallelactivefilters,seriesactivefiltersandotherI.INTRODUCTIONfiltercombinations[13].Theparallelactivepowerfilteriscon-H
8、EpowerelectronicrelatedfacilitiesmaygeneratealargenectedinparalleltotheloadandthegeneratedcompensationT
