基于EMTP的GIS中避雷器防雷特性分析  

Analysis of Lightning Protection Characteristics of Lightning Arrester Based on EMTP

作　　者：林号缙 汪洋[1] LIN Hao-jin;WANG Yang(Taizhou University,Taizhou 318000,China)

机构地区：[1]台州学院,台州318000

出　　处：《价值工程》2020年第12期195-198,共4页Value Engineering

摘　　要：避雷器是GIS重要的防雷设备,目前承受雷电过电压时GIS内部设备中各位置、各设备电参数不能具体量化,只能定性分析。笔者采用电磁暂态程序ATP-EMTP来对电力系统中GIS变电站的运行状态进行雷击的模拟和雷击过程中的参数测试,计算落雷时GIS各高压配电装置和输电母线上不同位置的过电压、过电流波形及具体数值。模拟实验研究表明MOA避雷器在GIS装置中起到了良好的防雷保护效果,并能够定量地说明不同位置的雷电过电压数值,为GIS内部各位置、各设备绝缘的合理布局与配合提供依据。Arrester is an important lightning protection equipment for GIS.At present,the electrical parameters of each position and equipment in GIS internal equipment cannot be quantified when subjected to lightning overvoltage,and can only be qualitatively analyzed.The author uses the electromagnetic transient program ATP-EMTP to simulate the lightning strike of the GIS substation in the power system and the parametric test during the lightning strike,and calculate the overvoltage overcurrent waveform and specific values at different positions of the GIS high voltage power distribution device and the transmission bus during the lightning strike.The simulation experiment shows that the MOA arrester plays a good lightning protection effect in the GIS device,and can quantitatively explain the lightning overvoltage values at different locations,which provides a basis for the reasonable layout and cooperation of the various locations and equipment insulation inside the GIS.

关 键 词：GIS线路 避雷器 防雷特性 EMTP 雷电过电压 

分 类 号：TM86[电气工程—高电压与绝缘技术]