圖4-2所示。該老化評估模型綜合了傳統(tǒng)和新興的老化評價方法對油紙絕緣設備進行評估，兩種評估結果可以相互比較、佐證ADDINEN.CITE<EndNote><Cite><Author>Li</Author><Year>2005</Year><RecNum>462</RecNum><DisplayText><styleface="superscript">[62]</style></DisplayText><record><rec-number>462</rec-number><foreign-keys><keyapp="EN"db-id="xxesexfs49saddewp0fv9rfi2rpr2edfzzws"timestamp="1466411899">462</key></foreign-keys><ref-typename="JournalArticle">17</ref-type><contributors><authors><author>Li,Q.</author><author>Zhao,T.</author><author>Siew,W.H.</author></authors></contributors><titles><title>Definitionanddigitalalgorithmsofdielectriclossfactorforconditionmonitoringofhigh-voltagepowerequipmentwithharmonicsemphasis</title><secondary-title>IEEProceedings-Generation,TransmissionandDistribution</secondary-title></titles><pages>309</pages><volume>152</volume><number>3</number><keywords><keyword>conditionmonitoring</keyword><keyword>dielectriclossmeasurement</keyword><keyword>digitalsimulation</keyword><keyword>harmonicdistortion</keyword><keyword>powerapparatus</keyword><keyword>powerengineeringcomputing</keyword><keyword>approximatingalgorithm</keyword><keyword>backgroundnoise</keyword><keyword>capacitivecurrent</keyword><keyword>computersimulations</keyword><keyword>decouplingalgorithm</keyword><keyword>dielectriclossfactor</keyword><keyword>dielectricphysics</keyword><keyword>digitalalgorithms</keyword><keyword>harmonicsemphasis</keyword><keyword>high-voltagepowerequipment</keyword><keyword>onlineconditionmonitoring</keyword><keyword>power-frequencyfluctuation</keyword><keyword>resistivecurrent</keyword></keywords><dates><year>2005</year></dates><isbn>13502360</isbn><urls></urls><electronic-resource-num>10.1049/ip-gtd:20045043</electronic-resource-num></record></Cite></EndNote>[62]，對油紙絕緣設備老化評估水平具有促進和推動作用。為設備的可靠安全運行提供了技術支撐，為輸變電運行單位對此類設備的檢修、運行以及及時安排停運提供了輔助決策。圖STYLEREF1\s4-SEQ圖\*ARABIC\s12變壓器老化評估模型小結提出了可以應用于實際的油紙絕緣設備評估體系。分析了多起典型變壓器案例的驗證過程，分布確定各項的閾值和初始權重。并且在研究過程中，對各項診斷算法閾值和權重的調整，最終將電氣絕緣方面、油化學試驗評估以及介電響應方法（頻域譜測介損法FDS）的結果按照相應權重有機的結合起來，用于實際計算。結論與展望結論為了保障油浸式電力變壓器設備的穩(wěn)定、可靠運行，需要對設備的故障作出及時的判別和預測，本文結合油紙絕緣設備的實際運行情況，針對不同狀態(tài)、不同類型油紙絕緣設備進行研究。在現(xiàn)場對變壓器油紙絕緣設備開展大量FDS介電響應實驗，基于電介質極化理論，從頻域FDS實驗結果中提取了用來表征油紙絕緣設備絕緣狀態(tài)的老化特征量；最后，研究綜合電氣、油化與介電響應的狀態(tài)評估方法，提出了可以應用于實際的油紙絕緣設備評估體系，本文的研究成果以及完成的工作主要分為以下幾個方面：（1）根據(jù)對從多個電網(wǎng)公司收集的變壓器試驗數(shù)據(jù)統(tǒng)計，老化特征參數(shù)會受到電壓等級以及家族結構不同的影響。從統(tǒng)計數(shù)據(jù)上看，CO、CO2、總烴含量與運行年限的相關性最好，適合作為變壓器老化特征量。CH4、C2H4、C2H6也與變壓器老化年限具有一定的關系，適合作變壓器老化參考量。（2）可利用改進的Havriliak–Negami極化模型可FDS主絕緣測試曲線進行解譜，提取老化特征值。經(jīng)過試驗與現(xiàn)場驗證，結果證明表達電導過程的A1與n1(電導過程的幅值與形狀參數(shù))與老化程度的相關度最好，可通過A1與n1計算變壓器老化程度。（3）研究綜合電氣、油化與介電響應的狀態(tài)評估方法，提出了可以應用于實際的油紙絕緣設備評估體系。分析了多起典型變壓器案例的驗證過程，確定了各項的閾值和初始權重。并且在長期研究過程中，對各項診斷算法閾值和權重的調整，最終將電氣絕緣方面、油化學試驗評估以及介電響應方法（頻域譜測介損法FDS）的結果按照相應權重有機的結合起來，用于實際計算。不足與展望由于作者水平、時間以及科研條件的限制，本文的研究工作還不夠完善，有待進一步研究和探討。盡管取得上述研究成果和結論，未來仍需進一步開展以下研究工作：（1）結合電力系統(tǒng)現(xiàn)場實際運行中的設備絕緣缺陷及故障，開展更多油紙絕緣設備的介電響應實驗，并將其進一步應用到特高壓直流、交流變電設備。（2）基于本文從介質響應特性曲線中提取的新型介電特征參量，綜合考慮現(xiàn)有絕緣老化評估的物理化學方法，以退役油紙絕緣設備為研究對象。構建新的設備模型，研究油紙絕緣的老化機理，利用有限元等手段進行模擬，進一步對油紙絕緣設備的老化狀態(tài)及剩余壽命做出更為準確的評價。參考文獻ADDINEN.REFLIST[1] 萬星辰.變壓器油紙絕緣的介電譜診斷技術研究[D].哈爾濱:哈爾濱理工大學,2014.[2] 文華,馬志欽,王耀龍,etal.變壓器油紙絕緣頻域介電譜特性的XY模型仿真及試驗研究[J].高電壓技術,2012,38(8):1956-1964.[3] 許淵,劉有為,王文煥,etal.大型電力變壓器油紙絕緣含水量的介質響應診斷技術[J].中國電機工程學報,2012,32(33):133-140.[4] 周利軍.牽引變壓器溫升與微水擴散特性的研究及其狀態(tài)預測[D].西南交通大學,2007.[5] 廖瑞金,孫會剛,尹建國,etal.水分對油紙絕緣熱老化速率及熱老化特征參量的影響[J].電工技術學報,2012,27(5):34-42.[6] 徐志鈕,律方成.基于等效模型的介質損耗數(shù)值算法[J].電力系統(tǒng)保護與控制,2011,(11):74-78.[7] 廖瑞金,汪可,周天春,etal.采用局部放電因子向量評估油紙絕緣熱老化狀態(tài)的一種方法[J].電工技術學報,2010,(09):28-34.[8] 楊麗君,孫才新,廖瑞金,etal.油紙絕緣老化狀態(tài)判別的局部放電特征量[J].電力系統(tǒng)自動化,2007,(10):55-60.[9] 郝建.變壓器油紙絕緣熱老化的時頻域介電和空間電荷特性研究[D].重慶:重慶大學,2012.[10] SahaTK.Reviewofmoderndiagnostictechniquesforassessinginsulationconditioninagedtransformers[J].DielectricsandElectricalInsulation,IEEETransactionson,2003,10(5):903-917.[11] HuiM,EkanayakeC,SahaTK.Powertransformerfaultdiagnosisundermeasurementoriginateduncertainties[J].DielectricsandElectricalInsulation,IEEETransactionson,2012,19(6):1982-1990.[12] LundgaardLE,HansenW,LinhjellD,etal.Agingofoil-impregnatedpaperinpowertransformers[J].IEEETransPowerDelivery,2004,19(1):230-239.[13] 楊麗君,廖瑞金,孫會剛,etal.油紙絕緣熱老化特性及生成物的對比分析[J].中國電機工程學報,2008,28(22):53-58.[14] BaralA,ChakravortiS.Conditionassessmentofcellulosicpartinpowertransformerinsulationusingtransferfunctionzeroofmodifieddebyemodel[J].IEEETrans.Dielectr.Electr.Insul.,2014,21(5):2028-2036.[15] BetieA,MeghnefiF,FofanaI,etal.Neuralnetworkapproachtoseparateagingandmoisturefromthedielectricresponseofoilimpregnatedpaperinsulation[J].IEEETransactionsonDielectrics&ElectricalInsulation,2015,22(4):2176-2184.[16] JayaM,LleibfriedT,KochM.Informationwithinthedielectricresponseofpowertransformersforwidefrequencyranges[J],2010:1-5.[17] 楊麗君,鄧幫飛,廖瑞金,etal.應用時–溫–水分疊加方法改進油紙絕緣熱老化壽命模型[J].中國電機工程學報,2011,(31):196-203.[18] 陸云才.基于分子模擬的油紙絕緣老化機理及氣體擴散行為研究[D].重慶:重慶大學,2007.[19] 劉宏亮.水分對油紙絕緣頻率響應的影響研究[D].北京:華北電力大學,2012.[20] 劉捷豐,廖瑞金,呂彥冬,etal.電力變壓器油紙絕緣含水量定量評估的時域介電特征量[J].電工技術學報,2015,30(2):196-203.[21] 譚聰.變壓器油中微水含量在線監(jiān)測研究[J].電源技術應用,2013,(09):185-186.[22] 周利軍,李先浪,王東陽,etal.不均勻老化油紙絕緣穩(wěn)態(tài)水分分布的頻域介電譜[J].高電壓技術,2015,41(6):1951-1958.[23] TenbohlenS,JagersJ,BastosG,etal.Developmentandresultsofaworldwidetransformerreliabilitysurvey[C].CIGRESCA2COLLOQUIUM2015:"Challengesofthefuturefortransformers&othersubstationequipment",Shanghai,China,September20th–25th,2015,2015.[24] KochM,PrevostT.Analysisofdielectricresponsemeasurementsforconditionassessmentofoil-papertransformerinsulation[J].IEEETransactionsonDielectrics&ElectricalInsulation,2013,19(6):1908-1915.[25] MihranyanA,LlagosteraAP,KarmhagR,etal.Moisturesorptionbycellulosepowdersofvaryingcrystallinity[J].IntJPharm,2004,269(2):433-442.[26] 廖瑞金周,楊麗君.變壓器油中水分對糠醛擴散及分布影響的分子動力學研究[J].高電壓技術,2011,37(6):1321-1328.[27] FofanaI,BorsiH,GockenbachE.Resultsonagingofcellulosepaperunderselectiveconditions[C].2001AnnualReportConferenceonElectricalInsulationandDielectricPhenomena(Cat.No.01CH37225),2001:205-208.[28] CsepesG,HamosI,BrooksR,etal.PracticalfoundationsoftheRVM(recoveryvoltagemethodforoil/paperinsulationdiagnosis)[C].ElectricalInsulationandDielectricPhenomena,1998.AnnualReport.Conferenceon,1998:345-355vol.1.[29] DeyD,ChatterjeeB,ChakravortiS,etal.AHybridFilteringSchemeforProperDenoisingofReal-timeDatainDielectricSpectroscopy[J].IEEETransactionsonDielectrics&ElectricalInsulation,2007,14(5):1323-1331.[30] MartínezM,PleiteJ.ImprovementofRVMTestInterpretationUsingaDebyeEquivalentCircuit[J].Energies,2020,13(2):323.[31] OkabeS,YamadaM,SatoS,etal.AdiagnosticmethodbasedonRVM(returnvoltagemeasurement)forcondenserbushingswithoil–paperinsulationsystems[J].ElectricalEngineeringinJapan,2000,130(1):21-29.[32] VanBolhuisJP,GulskiE,SmitJJ,etal.InterpretationofRVMmeasurements,beyondthepolarisationspectrum[C].ElectricalInsulation,2002.ConferenceRecordofthe2002IEEEInternationalSymposiumon,2002:179-182.[33] AshkezariAD,MaH,SahaTK,etal.Investigationofnon-linearityindielectricresponsemeasurementsfortransformerinsulationdiagnosis[C].InnovativeSmartGridTechnologiesAsia,2011:1-7.[34] GaoJ,YangL,WangY,etal.Conditiondiagnosisoftransformeroil-paperinsulationusingdielectricresponsefingerprintcharacteristics[J].IEEETransactionsonDielectrics&ElectricalInsulation,2016,23(2):1207-1218.[35] SahaTK,PurkaitP.SomeprecautionsforthefieldusersofPDCmeasurementfortransformerinsulationconditionassessment[C].PowerEngineeringSocietyGeneralMeeting,2003,IEEE,2003:2376Vol.4.[36] SahaTK,PurkaitP.SomeprecautionsforthefieldusersofPDCmeasurementfortransformerinsulationconditionassessment[C].PowerEngineeringSocietyGeneralMeeting,2003:2376Vol.4.[37] LiuJ,ZhengH,ZhangY,etal.GreyRelationalAnalysisforInsulationConditionAssessmentofPowerTransformersBasedUponConventionalDielectricResponseMeasurement[J].Energies,2017,10(10):1526.[38] Ming-JieT,MinL,HaoX,etal.Frequencydomaincharacteristicsandinsulationconditionevaluationofpowertransformeroil-paperinsulation[C].HighVoltageEngineeringandApplication(ICHVE),2012InternationalConferenceon,2012:443-446.[39] XiaG,WuG,GaoB,etal.ANewMethodforEvaluatingMoistureContentandAgingDegreeofTransformerOil-PaperInsulationBasedonFrequencyDomainSpectroscopy[J].Energies,2017,10(8):1195.[40] ZhangD,ZhaoH,YunH,etal.StudyonFDScharacteristicsofoil-immersedpaperinsulationbushingundernon-uniformmoisturecontent[J],2018.[41] 徐肖偉,孫兆臣,劉光祺.基于頻域介電譜法的套管受潮狀態(tài)現(xiàn)場評估[J].云南電力技術,2019,47(03):30-33.[42] 畢鵬翔張,秦少臻.變壓器固體絕緣狀況的監(jiān)測方法[J].高電壓技術,2000,26(6):47-49,51.[43] SahaTK.Reviewofmoderndiagnostictechniquesforassessinginsulationconditioninagedtransformers[J].IEEETrans.Dielectr.Electr.Insul.,2003,10(5):903-917.[44] SahaTK,PurkaitP.Understandingtheimpactsofmoistureandthermalageingontransformer'sinsulationbydielectricresponseandmolecularweightmeasurements[J].IEEETrans.Dielectr.Electr.Insul.,2008,15(2):568-582.[45] DerHouhanessianV,ZaenglWS.Timedomainmeasurementsofdielectricresponseinoil-paperinsulationsystems[C].ElectricalInsulation,1996.,ConferenceRecordofthe1996IEEEInternationalSymposiumon,1996:47-52vol.1.[46] OjhaSK,PurkaitP,ChakravortiS.Modelingofrelaxationphenomenaintransformeroil-paperinsulationforunderstandingdielectricresponsemeasurements[J].IEEETransactionsonDielectrics&ElectricalInsulation,2016,23(5):3190-3198.[47] 董明,劉媛,任明,etal.油紙絕緣頻域介電譜解釋方法研究[J].中國電機工程學報,2015,(4):1002-1008.[48] YewJH,PradhanMK,SahaTK.Effectsofmoistureandtemperatureonthefrequencydomainspectroscopyanalysisofpowertransformerinsulation[C].PowerandEnergySocietyGeneralMeeting-ConversionandDeliveryofElectricalEnergyinthe21stCentury,2008IEEE,2008:1-8.[49] EkanayakeC,GubanskiSM,GraczkowskiA,etal.FrequencyResponseofOilImpregnatedPressboardandPaperSamplesforEstimatingMoistureinTransformerInsulation[J].IEEETransPowerDelivery,2006,21(3):1309-1317.[50] 任曉紅,王偉,鄭健康,etal.500kV變壓器套管典型故障及分析[J].高電壓技術,2008,34(11):2513-2516.[51] KochM,KrugerM.Afastandreliabledielectricdiagnosticmethodtodeterminemoistureinpowertransformers[C].IEEEInt’l.Conf.ConditionMonitoringandDiagnosis(CMD),paperE1-2,,2008:467-470.[52] EricD,LaurentL.Low-frequencydielectricresponseofepoxy-micainsulatedgeneratorbarsduringmulti-stressaging[J].DielectricsandElectricalInsulation,IEEETransactionson,2007,14(1):212-226.[53] 劉媛,董明,任明,etal.油紙絕緣頻域介電譜仿真模擬中XY模型與有限元模型對比研究[J].高電壓技術,2014,40(11):3483-3490.[54] 戴佺民.油浸紙?zhí)坠苁艹比毕萘踊^程及診斷的研究[D].北京:華北電力大學(北京),2019.[55