碩士論文-1-電力電子與電力傳動(dòng)研究生畢業(yè)論文題目流光放電等離子體煙氣脫硫反應(yīng)器、電源及其匹配問(wèn)題研究專業(yè)：電力電子與電力傳動(dòng)碩士論文-2-流光放電等離子體煙氣脫硫反應(yīng)器、電源及其匹配問(wèn)題研究摘要燃煤煙氣所含的煙塵、二氧化硫、氮氧化物等有害物質(zhì)是造成大氣污染、酸雨和溫室效應(yīng)的主要根源。脈沖電暈法煙氣脫硫脫硝技術(shù)經(jīng)過(guò)各國(guó)科技人員的不斷努力，目前已經(jīng)發(fā)展到工業(yè)試驗(yàn)階段。脈沖電源問(wèn)題是脈沖電暈法脫硫脫硝技術(shù)產(chǎn)業(yè)化的難以克服的困難之一。交直流疊加電源流光放電等離子體發(fā)生技術(shù)的出現(xiàn)，以及在此基礎(chǔ)上的煙氣脫硫工藝流程的實(shí)現(xiàn)，使流光放電煙氣脫硫技術(shù)工業(yè)應(yīng)用近在眼前。交直流疊加電源發(fā)生流光電暈與脈沖電源發(fā)生的流光在脫硫脫硝效果是相同的。交直流疊加電源采用電力電子開關(guān)器件代替火花隙的，這樣可以大大的提高開關(guān)的壽命以及電源工作的可靠性和穩(wěn)定性。電源采用交直流電源疊加的方式，交流電壓使放電增強(qiáng)，產(chǎn)生自由基增多，因而氧化脫除量增加；直流基壓驅(qū)使正離子和電子離開流光通道，在更大的范圍內(nèi)發(fā)生復(fù)合反應(yīng)，自由基分布更廣，交直流疊加可以產(chǎn)生穩(wěn)定、寬范圍和有效的流光。該交直流疊加電源采用高頻電能變換技術(shù)，利用諧振的工作方式，在諧振升壓的同時(shí)可以實(shí)現(xiàn)逆變電路開關(guān)管的零電流關(guān)斷，減少開關(guān)損耗和散熱器的體積。同時(shí)串聯(lián)電感的應(yīng)用使電源可以可靠的工作在負(fù)載頻繁放電的條件下。反應(yīng)器作為交直流疊加電源的負(fù)載對(duì)電源的工作狀態(tài)有很大的影響；在電源和反應(yīng)器系統(tǒng)中流光的發(fā)生不能脫離反應(yīng)器，電源和反應(yīng)器碩士論文-3-必須結(jié)合在一起進(jìn)行研究。本文主要針對(duì)流光放電等子體煙氣脫硫反應(yīng)器、交直流疊加電源及其匹配問(wèn)題進(jìn)行研究。本文分析了流光放電脫硫反應(yīng)器的負(fù)載特性，利用鏡像法，計(jì)算了線板結(jié)構(gòu)反應(yīng)器的靜態(tài)電容。研究了如何優(yōu)化反應(yīng)器的板電極寬度、放電極鄰距等電極配置形式，從而提高交直流疊加電源的效率和脫硫系統(tǒng)能量利用率。在12000Nm3/h工業(yè)中試試驗(yàn)平臺(tái)上，在模擬煙氣的情況下，對(duì)流光放電煙氣脫硫反應(yīng)器、電源系統(tǒng)以及以此為基礎(chǔ)的整個(gè)工藝流程進(jìn)行了大量的實(shí)驗(yàn)研究，獲得了良好的實(shí)驗(yàn)結(jié)果，確定了工藝流程的大量的工業(yè)運(yùn)行參數(shù)，為以后大規(guī)模工業(yè)應(yīng)用積累了寶貴經(jīng)驗(yàn)。關(guān)鍵詞：煙氣脫硫，流光放電，交直流疊加，反應(yīng)器，匹配碩士論文-4-THERESEARCHOFSTREAMERDISCHARGEPLASMAFGDREACTOR,AC+DCPOWERSUPPLYANDMATCHPROBLEMOFTHEMABSTRACTSoot,SO2,NOXandotherdeleteriousmatterscontainedinfluegasarethemainrootsofatmosphereempoison,acidrainandgreenhouseeffect.ManyachievementsinthetechnologyofDESO2fromfluegasbyPPCP(PulseCoronaInducedPlasmaChemicalProcess)havebeenachievedandthistechnologywillbeenlargedintoindustrialscaleinthefuture.PulsepowersupplyproblemistheprimarydifficultytoDESO2andDENOXfromfluegasbyPPCP.IndustrialapplicationofDESO2andDENOXfromfluegasbystreamerdischargewillcomeintotruesoonwiththeutilizingofthetechnologyofinspiringstreamerdischargeplasmabyAC+DCpowersupplyandtheachievingtechnicalprocessbasedon碩士論文-5-this.StreamercoronainducedbyAC+DCpowersupplyhasthesameeffectofDESO2withstreamercoronainducedpulsepowersupply.Thispowersupplyusesthesolid-stateswitchtotakeplacethespark-gapswitch,whichwillincreasethelifespanofswitchandthestability&dependabilityofpowersupply.TheoutputofthepowersupplyistheACsupposedontheDCinordertoproduceeffectiveandsteadystreameratabroadrange.ACmakesthedischargingstrongerandincreasestheenergydensityandfreeradicalquantityinthereactor.DCspreadscationandfreeradicaltoabroadrange.TheAC+DCpowersupplymakeuseofthetechnologyofhighfrequencypowertransformandresonant.UsingtheresonanttechniquecanrealizeZCSanddecreaseswitchingloss.Atthesametimetheseriesinductancecanmakethepowersupplyworknormallyundertheconditionoffrequentdischarginginthereactor.碩士論文-6-ReactorhasagreatinfluencetoworkingstateofAC+DCpowersupplyasitsloadandcantbeleavedoutofaccountfromthesystemproducingstreamerdischarge.Sothestudyonreactorandpowersupplymustbetakenintoaccountsynchronously.ThepapermainlyresearchesstreamerdischargeplasmaDESO2reactor,AC+DCpowersupplyandtheswitchproblemofthem.Inthepaper,theloadcharacteristicofstreamerdischargeDESO2reactorisanalyzedandthestaticcapacitanceoftheline-planereactoriscalculatedwiththemethodofenantiomorphy.Thepaperresearchesintooptimizingelectrodeconfigurationsofstreamerdischargereactorsuchasthedistancebetweendischargeelectrodesandpanelelectrodes,whichcanimprovethepowerfactorofAC+DCpowersupplyandenergyutilizingrateoftheDESO2system.StreamerdischargeplasmaDESO2reactor,AC+DCpowersupplyandthewholeDESO2systemareinvestigated碩士論文-7-comparativelydeeplyinthepilottestof12,000Nm3/h.The