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1、中南大學(xué)碩士學(xué)位論文ActivePowerFilter姓名：RafiYoussef（約瑟夫）申請學(xué)位級別：碩士專業(yè)：計算機應(yīng)用技術(shù)指導(dǎo)教師：羅安20040101原創(chuàng)性聲明本人聲明，所呈交的學(xué)位論文是本人在導(dǎo)師指導(dǎo)下進行的研究工作及取得的研究成果。盡我所知，除了淪文中特別加以標(biāo)注和致謝的地方外，論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果，也不包含為獲得中南大學(xué)或其他單位的學(xué)位或證書而使用過的材料。與我共同工作的同志對本研究所作的貢獻均已在在論文中作了明確的洗明。作者簽名R期：鯊年三月旦日，關(guān)于學(xué)位論文使用授權(quán)說明本人了解中南大學(xué)有關(guān)保留、使用學(xué)位論文的規(guī)定，即

2、：學(xué)校有權(quán)保留學(xué)位論文，允許學(xué)位論文被查閱和借閱；學(xué)?？梢怨紝W(xué)位論文的全部或部分內(nèi)容，可以采用復(fù)印、縮印或其它手段保存學(xué)位論文；學(xué)?？筛鶕?jù)目家或湖南省有關(guān)部rJ規(guī)定送交學(xué)位論文。作者簽名：口期：絲年上月旦日杖。彤Didacticxwtemofcompensationofharmonicsandreactivepower．(．．b．．．y．．．．R．．．．a(chǎn)．．．ft．．．．．．Y．．．o．．．．u．．．s．．s．．．e—D—MasteI—pegree—jhesisLikeanygeneratorofelectdcpower，anetworkofpowerpr

3、ovidesenergytotheapparatusesusersbytheintermediaryofthetensionswhichitmaintainsontheirterminals．Itappearsobviousthatthequalityofthisene}rgydependsonthatofthelensionatthepointofdelivery．Thistensiongenerallyundergoesmanydisturbancesoftwodistinctodgins：—Disturbancesoftensioncausedbythe

4、passage．intheelectdcalsupplynetworks。oftheinterferencecurrentsliketheharmonic．unbalantedandreactivecurrents．一DisturbancesoftensioncausedbydisturbingtensionsIiketheharmonicandunbalancedtensionsandthehollowsoftension．Inanelectdcalnetwork．unbalancedandharmoniccurrentsgeneratedbynonline

5、arandunbalancedIoadscancauseharmonicsandunbalancedvoltage．ThesevoltageperturbationsalongwithvoItagesagcanstronglydegradecustomerpowerquality．Nowadays，theactivefilterssuchasshunt，seriesandcombinedshunt．sedesarestudiedasafiexiblesolutiontocompensatealIcurrentandvoltageperturbations．Th

6、ispaperpresentsdesigningtheactivepowerfilter．Thisparalleltypeactivepowerfilterisusedtoimprovepowerfactorofnon．1inearIoadtobeneedy1．ThepdncipleisthattheactivepowerfilterwouldsupportreactivepowerandharmonicspowerthatIcadconsumes。thenthepowersupplywoulddeliveronlyaveragepowerThefilterc

7、onsistsofacapacitor,aninductorandfourpowerswitches。Thecapacitorisasourcewhereenergyisstoredinforbalancingpower．Theinductorisusedtodecreaserateofcurrentchange．AndthepowerswitchesareusedtocontroIthedirectionofpowerflow．ThepowerswitchesjsabletocontroIthedirectionofpowerflowasIongasthec

8、apacitorvoltageiske