基于工況環(huán)境下絕緣子污穢微波輻射特性的研究.pdf

1、華北電力大學（保定）碩士學位論文基于工況環(huán)境下絕緣子污穢微波輻射特性的研究姓名：呂旭東申請學位級別：碩士專業(yè)：工學；通信與信息系統(tǒng)指導教師：高強201103華北電力大學碩士學位論文IIAbstractAccdingtomicrowaveradiationtheyinthispaperthemicrowaveradiationmeasurementmethodofinsulatcontaminationwasmainlystudiedun

2、derwkingcondition.Thepaperresearchesontheeffectsofboththeequivalentsaltdepositdensity(ESDD)nonsolubledepositdensity(NSDD)ontheantennatemperature(TA)ofcontaminatedXP70insulatsunderclearskycloudwhetherconditionstheexperien

3、cefmulaofTAisproposed.TheresultsshowthatboththeESDDNSDDhaveinfluenceontheTAofthecontaminatedinsulatstherelationshipbetweenTAESDDisthesameasthatbetweenTANSDDbyapowerfunctionthroughcurvefitting.BothESDDNSDDaremutuallyindep

4、endentasftheinfluenceonTA.TheexperiencefmulaofTAwasverifiedaccuratebytheleastsquaresprocedureTableCurve4.0program.Basedonthelongtermtestsresultstheeffectsofboththeambienttemperatureairhumilityonthemicrowaveradiationacter

5、isticofcontaminatedinsulatswereanalyzed.TheambienttemperatureisthebiggestinfluencedfactofTAbygrayrelationalanalysis.Thecrespondencebetweenmediumemissionrateairhuitywasobtainedwhenambienttemperatureskytemperaturewereremov

6、edindertostudyontheimpactoftheairhuityonmicrowaveradiationofcontaminatedinsulats.TheresultsshowthatthecrespondencebetweenmediumemissionrateairhuityisbetterthanthatbetweenTAairhuity.FinallyanESDDNSDDfecastingmodelbasedona

7、radialbasisfunction(RBF)neuralwkisputfwardfpredictingthepollutiondegreeoftheinsulat.ItshowsthattheRBFwkmodelhasachievedgoodpredictingperfmance.Keywds：insulatcontamination；antennatemperature；ESDD；NSDD；airhuity；radialbasis