行业应用与交流IndustrialApplicationsandCommunications《自动化技术与应用》2023年第42卷第6期TechniquesofAutomation&Applications基于PSCAD的LNG接收站二次系统耐雷水平仿真分析方法魏振忠,司倡如,李振(国家管网集团北海液化天然气有限责任公司，广西北海536005)摘要:为全面评估LNG接收站二次系统耐雷水平，提出了一种基于PSCAD/EMTDC的电气二次系统耐雷水平仿真分析方法。根据LNG接收站防雷措施实际设置情况，构建接收站防雷保护的PSCAD仿真模型，仿真计算雷电波侵入二次系统时雷电过电压的变化情况。分析安装避雷器、3级防雷保护措施时的防雷效果。结果显示，避雷器与3级防雷保护措施配合时能够有效抑制接收站二次系统雷击过电压，仿真分析方法可为提升LNG接收站二次系统耐雷水平提供一定理论参考。关键词:LNG接收站；二次系统；PSCAD；雷击仿真分析；防雷保护中图分类号：TP391.9文献标识码:A文章编号:1003-7241(2023)06-0160-05SimulationAnalysisMethodforLightningWithstandLevelofSecondarySystemofLNGTerminalBasedonPSCADWEIZhen-zhong,SIChang-ru,LIZhen(PipeChinaBeihaiLiquefiedNaturalGasCo.,Ltd.,Beihai536005China)Abstract:InordertocomprehensivelyevaluatethelightningwithstandlevelofsecondarysysteminLNGterminal,asimulationanalysismethodoflightningwithstandlevelofelectricalsecondarysystembasedonPSCAD/EMTDCisproposedinthispaper.Accord-ingtotheactualsettingoflightningprotectionmeasuresofLNGterminal,thePSCADsimulationmodeloflightningprotectionofLNGterminalisconstructed,andthechangeoflightningovervoltagewhenlightningwaveinvadesthesecondarysystemissimulatedandcalculated.Thelightningprotectioneffectofinstallinglightningarresterand3-levellightningprotectionmeasuresisanalyzed.TheresultsshowthatthelightningsurgearrestercaneffectivelysuppressthelightningovervoltageofthesecondarysystemoftheLNGterminalwhencombinedwiththethree-levellightningprotectionmeasures.ThesimulationanalysismethodcanprovideatheoreticalreferenceforimprovingthelightningwithstandlevelofthesecondarysystemoftheLNGterminal.Keywords:LNGterminal;secondarysystem;PSCAD;lightingstrikesimulationanalysis;lightingprotection收稿日期:2021-07-07DOI:10.20033/j.1003-7241.（2023）06-0160-05....
