資源描述：
《高壓輸電導(dǎo)線三維工頻電磁場計算與測量.pdf》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
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：1000-3673（2011）03-0159-06中圖分類號：TM15文獻標志碼：A學(xué)科代碼：470·4014高壓輸電導(dǎo)線三維工頻電磁場計算與測量11213陳楠，文習山，劉波，藍磊，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型計算結(jié)果與二維模型導(dǎo)線計算高度取最小對地高度時的transmissionlineorspace-crossingtransmissionlines計算結(jié)果十分接近，且均與實測值比較吻合；交叉跨越導(dǎo)線accurately,basedonchargesimul
4、ationmethod(CSM)and下方交叉點投影位置，工頻電磁場計算值與測量值也吻合較Biot-Savarttheorem,auniversalmodeltocalculatethree好，驗證了交叉跨越導(dǎo)線計算模型的有效性。此外，分析了dimensionalPFEMFisbuiltaccordingtocatenaryequation,導(dǎo)線下方工頻電磁場計算值與測量值的誤差來源，著重討論thenthedistributionofPFEMFunderordinary330kVdouble了影響三維計算模型計算結(jié)果的相關(guān)因素，給出了導(dǎo)體線單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；工頻電磁場；懸鏈線；交叉跨越；transversedistributionofPFEMFalongthemeasuredpoints現(xiàn)場測量；模擬電荷法perpendiculartothemidspan,theresultscalculatedby0引言three-dimensionalmodelun
6、derthecalculationheightoftheconductorthatischosenastheminimumheightaboveground高壓輸電線路地面電磁場強度是確定線路最areveryclosetothosecalculatedbytwo-dimensionalmodel小對地高度及劃定線路走廊寬度的重要依據(jù)[1-3]。隨andareclosetothemeasuredresultsaswell;attheprojection著公眾環(huán)保意識的加強，對導(dǎo)線工頻電磁場的準確beneaththecrossingpointofcrossingtransmissionline
7、s,the計算越發(fā)具有重要意義。目前計算導(dǎo)線工頻電磁場calculationresultsofPFEMFareclosetothemeasuredresults,的方法有很多，但大多采用二維計算模型，將導(dǎo)線thustheeffectivenessoftheproposedcalculationmodelofcrossingtransmissionlinesisverified.Thecausesleadingto視為與地
