Review of Charge Accumulation on Spacers of Gas Insulated Equipment at DC Stress  

作　　者：Hongyang Zhou Guoming Ma Cong Wang Jue Wang Guixin Zhang Youping Tu Chengrong Li 

机构地区：[1]State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources and the Beijing Key Laboratory of High Voltage and EMC,North China Electric Power University,Beijing 102206,China [2]Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing,China [3]Department of Electrical Engineering,Tsinghua University,Beijing 100084,China

出　　处：《CSEE Journal of Power and Energy Systems》2020年第3期496-517,共22页中国电机工程学会电力与能源系统学报（英文）

基　　金：This work was supported in part by the National Basic Research Program of China(973 Program)(2014CB239500);Young Elite Scientists Sponsorship Program by CAST YESS20160004;Fok Ying-Tong Education Foundation for Young Teachers in the Higher Education Institutions of China(Grant No.161053);project of China Scholarship Council(CSC);the Fundamental Research Funds for the Central Universities(2019MS006).

摘　　要：Charge accumulation on the spacer surface in gas insulated equipment is very severe in the DC field,leading to easy flashover,which restricts the application of DC GIS/GIL.Therefore,knowledge about the charge accumulation characteristics of gas insulated equipment at DC stress is essential.In this paper,we reviewed the research methods and the characteristics of charge accumulation on spacers.A summary of charge measurement methods and setups are presented.And the surface charge inversion algorithms are introduced.Then the simulation model for charge accumulation in the DC field is reviewed.Subsequently,the charge accumulation mechanisms and phenomenon,the influence factor of surface charge accumulation and the influence of accumulated charge on spacer insulation characteristics are summarized.In addition,some suppression methods of surface charge accumulation are discussed.Finally,based on the understanding of charge accumulation on spacers,some suggestions on further studies are presented to aid in the design of a better spacer free from surface charges.

关 键 词：Charge accumulation DC gas insulated equipment review SPACER 

分 类 号：TM727[电气工程—电力系统及自动化]