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1、第36卷第2期電網(wǎng)技術(shù)Vol.36No.22012年2月PowerSystemTechnologyFeb.2012文章編號(hào)：1000-3673（2012）02-0200-06中圖分類號(hào)：TM743文獻(xiàn)標(biāo)志碼：A學(xué)科代碼：470·4014變壓器鐵心磁滯模型參數(shù)辨識(shí)12111李曉萍，彭青順，李金保，文習(xí)山，魯海亮（1．武漢大學(xué)電氣工程學(xué)院，湖北省武漢市430072；2．武漢市建筑工程質(zhì)量監(jiān)督站，湖北省武漢市430015）ParameterIdentificationofHysteresisLoopModelforTransformerCore12111LIXiaoping,
2、PENGQingshun,LIJinbao,WENXishan,LUHailiang(1.SchoolofElectricalEngineering,WuhanUniversity,Wuhan430072,HubeiPronvince,China;2.ConstructionQualitySupervisionStationofWuhan,Wuhan430015,HubeiProvince,China)ABSTRACT:Inallusiontothedifficultyofdeterminingfive關(guān)鍵詞：Jiles-Atherton模型；磁滯回線；連續(xù)算法；優(yōu)化；
3、parametersinJiles-Athertonmodeldescribinghysteresis均方誤差；參數(shù)辨識(shí)characteristicofironcore,bymeansoffindingoutimpacting0引言ruleofeachparameteroncharacteristicquantityofhysteresisloop,reasonableinitialvaluestofittheseparametersaredecided.當(dāng)高壓直流輸電單極大地回路運(yùn)行時(shí)，會(huì)引起Theseparametersaredecidedone-after-ano
4、therbyoptimization變壓器直流偏磁[1]，造成勵(lì)磁電流諧波含量增加，algorithm,i.e.,theminimumvalueofmean-squareerrorbetween無(wú)功損耗、噪聲及振動(dòng)增大等一系列問(wèn)題，將直接thehysteresisloopmeasuredbyexperimentandthehysteresis影響到變壓器的安全運(yùn)行。loopcalculatedbygivenfiveparametersistakenasthe為解決上述問(wèn)題，文獻(xiàn)[2-5]研究了流過(guò)變壓器optimizationobjective,andthestart-
5、upandstopofoptimization直流電流的計(jì)算等問(wèn)題；另一部分學(xué)者采用Jiles-ofeachparameteraswellastheitspercentagevariationarecontrolledbythefeedbackofabove-mentionedminimumvalueAtherton模型模擬變壓器鐵心磁滯特性，研究了直ofmean-squareerror,thusasetofparameterswithbest流電流對(duì)變壓器的影響。文獻(xiàn)[6-7]主要研究了直流approximationforJiles-Athertonmodelisat
6、tained.Thefitting偏磁對(duì)變壓器諧波的影響，找出了諧波分量(特別是resultsofhysteresisloopparametersof30Z120siliconsteel偶次諧波)隨中性點(diǎn)直流電流的增加快速增長(zhǎng)的特sheetproducedbyNipponSteelCorporationshowthatthe性。文獻(xiàn)[8]主要研究了直流偏磁對(duì)電容器組電流各proposedalgorithmissimpleandpracticable.Thecorrectness次諧波的影響，并給出了改變串聯(lián)電抗率可提高電andeffectivenessoftheprop
7、osedalgorithmareverifiedby容器組耐受直流偏磁電流的建議。文獻(xiàn)[9]分析了自comparisonresultsbetweenfitteddataandtheoreticaldataaswellasthatbetweenexperimentaldataandactualdataof耦變壓器受直流偏磁時(shí)，勵(lì)磁電流諧波和無(wú)功損耗practicalsiliconsteelsheets.均增加的現(xiàn)象。這些文獻(xiàn)在采用Jiles-Atherton模型KEYWORDS:Jiles-Athertonmodel;hysteresisl
