直流GIS/GIL金属异物运动特征、抑制及检测方法  

Motion Characteristics,Suppression and Detection Methods of Metal Particles in DC GIS/GIL

作　　者：刘博[1,2] 苏伟 张泽皓 公多虎 杨闽 陈庚[5] 何金良 李传扬[1] LIU Bo;SU Wei;ZHANG Zehao;GONG Duohu;YANG Min;CHEN Geng;HE Jinliang;LI Chuanyang(Department of Electrical Engineering,Tsinghua University,Beijing 100084,China;Shandong Taikai High Voltage Switchgear Co.,Ltd.,Tai’an 271000,China;State Grid Xinjiang Electric Power Co.,Ltd.Electric Power Science Research Institute,Urumqi 830063,China;Huaneng Lancang River Hydropower Inc.,Kunming 650214,China;School of Energy and Electronic Engineering,North China Electric Power University,Beijing 102206,China)

机构地区：[1]清华大学电机工程与应用电子技术系,北京100084 [2]山东泰开高压开关有限公司,泰安271000 [3]国网新疆电力有限公司电力科学研究院,乌鲁木齐830063 [4]华能澜沧江水电有限公司,昆明650214 [5]华北电力大学电气与电子工程学院,北京102206

出　　处：《高电压技术》2025年第3期1038-1051,共14页High Voltage Engineering

基　　金：国家重点研发计划(2022YFB2403700);国家自然科学基金(23FAA00813)。

摘　　要：直流气体绝缘金属封闭开关(gas-insulated metal enclosed switchgear,GIS)和输电线路(gas-insulated transmissionline,GIL)在制造、安装及运行过程不可避免引入金属异物,导致设备可靠性下降。研究金属异物运动特征,提出金属异物抑制及检测方法,对GIS/GIL设备高可靠运行意义重大。作者团队近5年聚焦直流GIS/GIL内部金属异物问题开展基础理论及技术研究,并在团队自研的±320 kV直流GIL及±550 kV直流GIS上对研究结论进行了验证,该文主要对作者团队研究内容及重要结论进行综述。首先,对金属异物溯源及运动特征进行了综述;其次,概述了团队在金属异物抑制策略方面的工作,并总结了基于光子计数的金属异物检测成果;最后,对下一步直流GIS/GIL金属异物亟待研究的方向及关键问题进行了探讨。During the manufacture,installation,and operation processes of DC gas-insulated metal enclosed switchgear(GIS)and gas-insulated transmission line(GIL),the introduction of metal particles is inevitable,leading to a decline in equipment reliability.Investigating the motion characteristics of metal particles and proposing detection and suppression methods are of great significance for the reliable operation of GIS/GIL.Over the past five years,we and our research team have focused on fundamental research into the issue of metal particles within DC GIS/GIL and validated their findings on±320 kV DC GIL and±550 kV DC GIS systems.This paper reviews the research conducted by our team over the last five years and highlights key findings.First,the sources and motion characteristics of metal particles are summarized.Second,our team’s work on suppression strategies for metal particles is outlined and the results from photon-counting-based de-tection methods are summarized.Finally,the urgent research directions and critical issues concerning metal particles in DC GIS/GIL systems are discussed.

关 键 词：直流气体绝缘组合电器 金属异物 运动特征 抑制策略 光子计数 

分 类 号：TM855[电气工程—高电压与绝缘技术]