特高压交流输电线路绕击耐雷性能与其防雷措施分析

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1、西华大学硕士学位论文governancemeasuresoftheUHVSingle-circuitACtransmissionlinebasedontheaboveanalysiscalculation.Differentiatedlightningprotectioncomprehensivegovernancemeasuresofcombine“mediator-type”lightningprotectionand“plus-type”lightningprotectionshouldbetakenadjustmeasurestolocal

2、conditions.Tocarryoutpertinentlydifferentiationlightningshieldingfailurepreventionwork,focusonstrengtheningtheprotectionstrategyofimportantlinesandmultilightningandstronglightningareaandeasyshieldingfailureflashoveroflines,toimprovetheoveralltechnicalandeconomyoflightningprote

3、ction.KeyWords:UHV;LightningShieldingFailure;ElectricGeometricModel;ATP-EMTP;ImpulseCorona;ANSYS;DifferentiatedLightningProtectionIII万方数据特高压交流输电线路绕击耐雷特性及防雷措施研究目录摘要..................................................................................................................

4、.............IAbstract.............................................................................................................................II第一章引言....................................................................................................................11.1研究背

5、景及意义...............................................................................................11.2国内外研究现状...............................................................................................11.2.1规程法...............................................................

6、.....................................21.2.2经典电气几何模型(EGM)和改进电气几何模型................................21.2.3先导发展模型(LPM).............................................................................51.3主要研究内容............................................................................

7、.......................6第二章特高压交流输电线路绕击耐雷性能分析........................................................72.1雷电放电机理...................................................................................................72.1.1雷电发生过程........................................................

8、................................72.1.2雷电绕击的物理过程..............