摘要
以4类典型气候条件(极干旱、半干旱、半湿润、湿润)的特高压直流输电线路绝缘子为研究对象,开展了绝缘子自然积污试验,获得了不同环境条件下特高压直流绝缘子的积污特性,揭示了不同伞型、不同憎水性表面绝缘子的积污特性。结果表明:从极干旱地区至湿润地区,绝缘子的灰盐比和不均匀积污系数均下降,湿润地区外伞型绝缘子与钟罩型绝缘子的等值盐密比为0.82,极干旱和半干旱地区耐张串复合绝缘表面与亲水性表面绝缘子等值盐密比分别为1.64和1.85。研究成果可为我国不同环境地区特高压直流输电线路外绝缘差异化设计提供依据。
Taking the UHV DC transmission line insulators under four typical climatic conditions such as extremely arid, semi-arid, semi humid, and humid as research objects, we conducted natural pollution accumulation tests on insulators. The pollution accumulation characteristics of UHV DC insulators under different environmental conditions were obtained, and the pollution accumulation characteristics of insulators with different umbrella types and hydrophobic surface were described. The results show that from the extremely arid region to humid region,both the ratio of ESDD to NSDD and uneven pollution coefficient of the insulators decrease. The ESDD ratio of bell-type insulator to outer umbrella insulator in humid area is 0.82, and the ESDD ratio of composite surface insulator to hydrophilic surface insulator of tension string in extremely arid and semi-arid areas is 1.64 and 1.85, respectively. The research results can provide a reference for the differential design of external insulation for UHV DC transmission lines at different environmental areas.
作者
黄瑞平
田亮
刘世涛
李晓光
高嵩
卢明
颜子威
HUANG Ruiping;TIAN Liang;LIU Shitao;LI Xiaoguang;GAO Song;LU Ming;YAN Ziwei(China Electric Power Research Institute,Beijing 100192,China;Research Institute of State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan 750011,China;Electric Power Research Institute of State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi 830011,China;Electric Power Research Institute of State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 210029,China;Electric Power Research Institute of State Grid Henan Electric Power Company,Zhengzhou 450052,China;China Energy Engineering Group Guangdong Electric Power Design Institute Co.,Ltd.,Guangzhou 510663,China)
出处
《绝缘材料》
CAS
北大核心
2021年第3期60-67,共8页
Insulating Materials
基金
国家电网公司科技项目(GY71-17-009)。
关键词
特高压直流
绝缘子
不同气象环境
积污特性
UHV DC
insulators
different meterorological environment
pollution accumulation characteristics
