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1、不同電極結(jié)構(gòu)介質(zhì)阻擋放電特性比較嚴(yán)金云1,方志2,錢晨2(1.南京化工職業(yè)技術(shù)學(xué)院自動控制系,南京210048;2.南京工業(yè)大學(xué)自動化與電氣工程學(xué)院,南京210009)摘要:采用電壓-電流波形測量、發(fā)光圖像拍攝、光譜分析等手段研究大氣壓空氣中刃-板電極、針-板電極和柱-板電極結(jié)構(gòu)介質(zhì)阻擋放電(DBD)的放電特性,并研究電壓幅值、電源頻率及氣隙距離對放電功率和分子振動溫度等放電參量的影響,結(jié)合放電理論對不同電極結(jié)構(gòu)DBD的特性進(jìn)行分析。結(jié)果表明:3種電極結(jié)構(gòu)DBD的電壓電流波形、Lissajous圖形以及光譜譜線體現(xiàn)出不同的特點(diǎn),相同條件下柱-板電極結(jié)構(gòu)DBD放電強(qiáng)烈,消
2、耗放電功率多,粒子譜線強(qiáng)度高,放電電流可達(dá)200mA。電極布置差異導(dǎo)致電場不均勻系數(shù)的不同是放電特性出現(xiàn)差異的主要原因。隨著電壓幅值、電源頻率的增加和氣隙距離的減小,3種電極結(jié)構(gòu)放電增強(qiáng),放電功率和分子振動溫度增加。關(guān)鍵詞:介質(zhì)阻擋放電;大氣壓;電極結(jié)構(gòu);放電特性;電暈中圖分類號:TM835文獻(xiàn)標(biāo)志碼:A文章編號:1009-9239(2014)05-0110-06DischargeCharacteristicsComparisonofDielectricBarrierDischargewithDifferentElectrodeStructuresYanJinyun1,
3、FangZhi2,QianChen2(1.DepartmentofAutomaticControl,NanjingCollegeofChemicalTechnology,Nanjing210048,China;2.SchoolofAutomationandElectricalEngineering,NanjingUniversityofTechnology,Nanjing210009,China)Abstract:Thedischargecharacteristicsofdielectricbarrierdischarge(DBD)withtheedge-plate,n
4、ee-dle-plate,andcolumn-plateelectrodestructureatatmosphericpressureinairwerestudiedandcomparedbymeasuringvoltageandcurrentwaveforms,takinglightingemissionimages,andusingspectrumanaly-sis.Theeffectsofvoltageamplitude,powerfrequency,andgapdistanceonthedischargepowerandmo-lecularvibrational
5、temperaturewerestudied,andthedischargecharacteristicsofDBDwithdifferentelec-trodestructureswereanalyzedbycombiningdischargetheory.Theresultsshowthatthevoltageandcur-rentwaveforms,Lissajousfigures,andemissionspectrumofthreeelectrodestructuresDBDshowdiffer-entcharacteristics.Atthesamecondi
6、tions,thecolumn-plateelectrodestructureDBDhasthestrongestdis-chargeandthemostdissipateddischargepower,andthedischargecurrentcanreach200mA.Thear-rangementoftheelectrodeleadstothedifferenceofnonuniformcoefficient,whichisthemainreasonofthedifferenceofdischargecharacteristics.Withtheincrease
7、ofvoltageamplitudeandpowerfrequencyandthedecreaseofgapdistance,thedischargebecomestrong,andthedischargepowerandmolecularvi-brationaltemperatureincrease.Keywords:dielectricbarrierdischarge;atmosphericpressure;electrodestructure;dischargecharacteristics;corona—————————————收