110千伏交聯(lián)聚乙烯電纜預(yù)制型接頭局部放電寬頻帶檢測(cè)研究.pdf

1、重慶大學(xué)碩士學(xué)位論文110千伏交聯(lián)聚乙烯電纜預(yù)制型接頭局部放電寬頻帶檢測(cè)研究姓名：龔寧濤申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：電氣工程指導(dǎo)教師：唐炬20090521重慶大學(xué)碩士學(xué)位論文英文摘要ABSTRACTHVca_bleaccessoriesarenotonlymeimport鋤tco珈【ponentel鋤emofpowercable0p訓(xùn)on，butalsegarded弱o∞ofnleimportaIltpowerequipmentf0rpar

2、ticularpositionbyelec仃icald印ar虹IlentPartialdischarge(PD)isnotonlymemaillreasont0causemeearlyiIlsulationde磬‘a(chǎn)dationofHVca_bleaccessories，butalso廿lecharacteristicscalart0describeitsiIlsulationstateItismealliIlgfult0detect鋤

3、ddia印osepanialdisch鶿eiIlHVcableaccess鰣esBased0n廿1efeaturesoful傾hi曲觸quency(UⅡ)detectionforPDinpowercable鋤dantennaⅡleo阱e(cuò)lectricalme勰urement’t11ebroadbanddetectionforPDmXLPEcablejointsis咖diedinmisp印er111emainrese卸chworkis弱f

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5、tedi行erencetimedoma證method(FDTD)，fourfactorsillnuencmg切Ⅱdetectionfi”P(pán)DincablejoiIIcsareresearched，whiChisproVidedf0rthedeVelopmentofbroadbandsensor111einnerbroadbaIldriIlgsensor印pliedt0PDdetectioniIlcablejoiIltsisdeVelop

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7、nalmethodSareproposed嬲、)~7e11Accordingtofieldmeasl】rement，thesensor’sbandc吼reach500MHz肌ddetectnsleVelof仃ansientpulsesi伊ale能ctiVely謝m1iIlearresponsepe而mance，whiChlaythe‰dationofest乏出1ishmentofbroadbaIldmonitoringsystemThe

8、broadbandsystemforPDdetectioniIl11OlVXLPEcablejointsises詘lishediIllabomtoⅨwhichisdealw曲fordataacquisitionreliabil咄Funhemore，nlrou曲廿leiIl仃oductiont0仃鋤smission1inemodelcalledweighingimpedancedistributionparametersmisedbyRJ

9、obava，tlleproperdete：ctiI培positionofiIulerbroadbaIldsensorisobtajnedThepe怕肌aIlceofdetectingsystemis印praisedbythewayofdischa瑪equant時(shí)calibration，sensitiV時(shí)calibrationa11dsimulatedPDdetectionTheresultsshownlatnlesyst鋤’bandwi