摘要
在高电压长时间作用下,固体绝缘表面容易积聚电荷,并有可能诱发绝缘子沿面闪络,进而影响电力系统的安全可靠运行。研究交流电压下固体绝缘表面的电荷积聚特点及放电特性,对于提高绝缘子的沿面闪络电压、改善绝缘子制造水平等都具有重要意义。该文结合目前正在进行的研究工作,针对当前交流电压作用下电荷积聚和放电特性研究中的关键问题,如电荷测量方法、电荷积聚原因、分布特点、影响因素以及表面电荷与沿面闪络电压的关系等进行阐述,对近年来相关的电荷积聚与放电特性研究进展进行总结,并对下一步的研究工作进行展望并提出建议,旨在为未来交流电压作用下绝缘子表面电荷的相关研究提供参考。
Charges tend to accumulate at the gas-solid interface under the action of high voltage for a long time. It is considered as one of the main factors leading to flashover, which affects the stable operation of power systems. It is of great significance to investigate the characteristics of charge distribution on insulator surface under AC voltage for improving the surface flashover voltage and manufacturing level of insulators. Based on the ongoing research work and the key problems in the study of charge accumulation and discharge characteristics, the related research progress in charge accumulation on solid insulating surface under AC voltage are summarized and reviewed, such as charge measurement methods, the causes of charge accumulation, charge distribution characteristics, influence factors, the relationship between surface charge and flashover voltage, and so on. At last, some suggestions for the ensuing researches are proposed so as to provide some references to related research in the future.
作者
张贵新
李大雨
王天宇
Zhang Guixin;Li Dayu;Wang Tianyu(Department of Electrical Engineering Tsinghua University, Beijing 100084 China;PLA Army Academy of Artillery and Air Defense, Zhengzhou 450052 China)
出处
《电工技术学报》
EI
CSCD
北大核心
2022年第15期3876-3887,共12页
Transactions of China Electrotechnical Society
基金
国家自然科学基金资助项目(52177151)。
关键词
交流电压
气固界面
表面电荷
闪络
AC voltage
gas-solid interface
surface charge
flashover
