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1、第35卷第3期電網(wǎng)技術(shù)Vol.35No.32011年3月PowerSystemTechnologyMar.2011文章編號(hào)：1000-3673（2011）03-0159-06中圖分類(lèi)號(hào)：TM15文獻(xiàn)標(biāo)志碼：A學(xué)科代碼：470·4014高壓輸電導(dǎo)線(xiàn)三維工頻電磁場(chǎng)計(jì)算與測(cè)量11213陳楠，文習(xí)山，劉波，藍(lán)磊，李曄（1．武漢大學(xué)電氣工程學(xué)院，湖北省武漢市430072；2．襄樊供電公司調(diào)度通信中心，湖北省襄樊市441000；3．寧夏電力科學(xué)研究院，寧夏回族自治區(qū)銀川市750002）CalculationandMeasurementofThree-DimensionalPowerFrequencyE
2、lectricalandMagneticFieldUnderTransmissionLine11213CHENNan,WENXishan,LIUBo,LANLei,LIYe(1.SchoolofElectricalEngineering,WuhanUniversity,Wuhan430072,HubeiProvince,China；2.DispatchandCommunicationCenterofXiangfanElectricPowerCompany,Xiangfan441000,HubeiProvince,China;3.NingxiaElectricPowerResearchIns
3、titute,Yinchuan750002,NingxiaHuiAutonomousRegion,China)ABSTRACT:Tocalculatepowerfrequencyelectricand場(chǎng)分布，結(jié)果表明，在垂直檔距中央的橫向分布上，三維模magneticfields(PFEMF)generatedbyhighvoltage型計(jì)算結(jié)果與二維模型導(dǎo)線(xiàn)計(jì)算高度取最小對(duì)地高度時(shí)的transmissionlineorspace-crossingtransmissionlines計(jì)算結(jié)果十分接近，且均與實(shí)測(cè)值比較吻合；交叉跨越導(dǎo)線(xiàn)accurately,basedonchargesimul
4、ationmethod(CSM)and下方交叉點(diǎn)投影位置，工頻電磁場(chǎng)計(jì)算值與測(cè)量值也吻合較Biot-Savarttheorem,auniversalmodeltocalculatethree好，驗(yàn)證了交叉跨越導(dǎo)線(xiàn)計(jì)算模型的有效性。此外，分析了dimensionalPFEMFisbuiltaccordingtocatenaryequation,導(dǎo)線(xiàn)下方工頻電磁場(chǎng)計(jì)算值與測(cè)量值的誤差來(lái)源，著重討論thenthedistributionofPFEMFunderordinary330kVdouble了影響三維計(jì)算模型計(jì)算結(jié)果的相關(guān)因素，給出了導(dǎo)體線(xiàn)單circuittransmissionlineo
5、nthesametowerandthatunderthe元剖分段數(shù)的合理值。crossingtransmissionlinesarecalculatedandmeasured.Calculationandmeasurementresultsshowthatasforthe關(guān)鍵詞：高壓輸電導(dǎo)線(xiàn)；工頻電磁場(chǎng)；懸鏈線(xiàn)；交叉跨越；transversedistributionofPFEMFalongthemeasuredpoints現(xiàn)場(chǎng)測(cè)量；模擬電荷法perpendiculartothemidspan,theresultscalculatedby0引言three-dimensionalmodelun
6、derthecalculationheightoftheconductorthatischosenastheminimumheightaboveground高壓輸電線(xiàn)路地面電磁場(chǎng)強(qiáng)度是確定線(xiàn)路最areveryclosetothosecalculatedbytwo-dimensionalmodel小對(duì)地高度及劃定線(xiàn)路走廊寬度的重要依據(jù)[1-3]。隨andareclosetothemeasuredresultsaswell;attheprojection著公眾環(huán)保意識(shí)的加強(qiáng)，對(duì)導(dǎo)線(xiàn)工頻電磁場(chǎng)的準(zhǔn)確beneaththecrossingpointofcrossingtransmissionline
7、s,the計(jì)算越發(fā)具有重要意義。目前計(jì)算導(dǎo)線(xiàn)工頻電磁場(chǎng)calculationresultsofPFEMFareclosetothemeasuredresults,的方法有很多，但大多采用二維計(jì)算模型，將導(dǎo)線(xiàn)thustheeffectivenessoftheproposedcalculationmodelofcrossingtransmissionlinesisverified.Thecausesleadingto視為與地
