高压线路雷击过电压实例分析  

Instance analysis of lightning overvoltage in high voltage transmission line

作　　者：刘锦峰 李建明 马林 周成 李默林 周悦 张榆 LIU Jinfeng;LI Jianming;MA Lin;ZHOU Cheng;LI Molin;ZHOU Yue;ZHANG Yu(Sichuan Energy Investment Jinding Industry and Finance Holding Group Co.,Ltd,Chengdu 610041,China;State Grid Electric Power Research Institute of Sichuan Electric Power Company,Chengdu 610072,China;Chengdu Yikai Weiye Technology Development Co.,Ltd.,Chengdu 610000,China;National Energy Group Science and Technology Research Institute Co.,Ltd.,Chengdu Branch,Chengdu 610073,China;Chengdu College of University of Electronic Science and Technology,Chengdu 611731,China;State Grid Ultra High Voltage Direct Current Center of Sichuan Electric Power Company,Chengdu 610041,China)

机构地区：[1]四川能投金鼎产融控股集团有限公司,四川成都610041 [2]国网四川省电力公司电力科学研究院,四川成都610072 [3]成都亿开伟业科技开发有限公司,四川成都610000 [4]国家能源集团科学技术研究院有限公司成都分公司,四川成都610073 [5]电子科技大学成都学院,四川成都611731 [6]国网四川省电力公司特高压直流中心,四川成都610041

出　　处：《电气应用》2022年第12期9-13,I0004,共6页Electrotechnical Application

摘　　要：首先论述了电力系统过电压分析的重要意义,详细分析了电力系统过电压的主要种类,介绍了绝缘配合的传统方法 ,为后面的过电压分析提供了理论基础。对电力系统过电压获得的数据进行了时域分析和频域分析,对现场收集到的过电压数据中一些典型的、频繁出现的过电压波形进行了分析,判断过电压的类型和产生的原因,这对于研究判断站内电气设备的绝缘强度、检修周期、设备改进和系统改造、过电压对高压送电线路的影响方式和程度以及过电压的防范等都具有重要的指导意义。在电力系统高压送电线路研究项目中应用取得初步成果。Firstly, the significance of power system overvoltage analysis is discussed, and the main types of overvoltage in power system are analyzed in detail;the traditional method of insulation matching is introduced, which provides a theoretical basis for the following overvoltage analysis. The data analysis of power system overvoltage includes time domain analysis and frequency domain analysis. Some typical and frequent overvoltage waveforms in the overvoltage data collected in the field are analyzed, and the types and causes of overvoltage are judged. It has important guiding significance to study and judge the insulation strength of electrical equipment, maintenance cycle, equipment and system improvement, the mode and degree of influence of overvoltage on high voltage transmission line as well as the prevention of overvoltage.The preliminary results have been achieved in the research project of high voltage transmission line.

关 键 词：高压送电线路 雷电放电物理过程 避雷针 雷电拦截新技术 过电压数据分析 

分 类 号：TM863[电气工程—高电压与绝缘技术]