[1]宋恒东,韩学春,陈 轩,等.污秽与串偏斜对劣化绝缘子空间电场的影响研究[J].机械与电子,2023,41(09):8-12.
　SONG Hengdong,HAN Xuechun,CHEN Xuan,et al.Influence Research of Pollution and String Deflection on the Space Electric Field of Deteriorated Insulators[J].Machinery & Electronics,2023,41(09):8-12.
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污秽与串偏斜对劣化绝缘子空间电场的影响研究()
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《机械与电子》[ISSN:1001-2257/CN:52-1052/TH]

卷:
41
期数:
2023年09期
页码:
8-12
栏目:
设计与研究
出版日期:
2023-09-25

文章信息/Info

Title:
Influence Research of Pollution and String Deflection on the Space Electric Field of Deteriorated Insulators
文章编号:
1001-2257 ( 2023 ) 09-0008-05
作者:
宋恒东; 韩学春; 陈 轩; 鲍 奕
国网江苏超高压公司,江苏 南京 211102
Author(s):
SONG Hengdong ;  HAN Xuechun ;  CHEN Xuan ;  BAO Yi
( State Grid Jiangsu UHV Company , Nanjing 211102 , China )
关键词:
有限元仿真; 劣化绝缘子; 空间电场; 污秽分布; 串偏斜
Keywords:
finite element simulation ;  deteriorated insulator ;  space electric field ;  pollution distribution ;  string deflection
分类号:
TM216.1
文献标志码:
A
摘要:
针对输电线路绝缘子串中容易产生劣化绝缘子,从而导致闪络、爆裂和串掉落事故的问题,建立三维的劣化绝缘子串空间电场仿真计算模型,研究污秽与串偏斜对劣化绝缘子空间电场的影响。结果表明:无污秽与偏斜情况下,在瓷、复合绝缘子串中劣化绝缘子附近的空间电场值均发生了明显的畸变;但是在污秽条件下,依托电场进行劣化绝缘子检测存在一定问题,表现为 Ⅱ 级污秽状态下虽可开展劣化检测,但 Ⅳ 级污秽对劣化检测影响较大;此外,在上下表面不均匀污秽状态下依然不适宜开展劣化绝缘子的检测;最后,串偏斜情况下,检测路径对绝缘子串劣化曲线分布的影响较为明显,是应用无人机进行基于空间电场的劣化绝缘子检测必须考虑的因素。
Abstract:
In view of the problem that deteriorated insulators are easy to occur in transmission line insulator strings , which will lead to flashover , burst and string drop accidents , a three-dimensional simulation calculation model of spatial electric field of deteriorated insulator strings is established , and the influence of pollution and string deflection on the spatial electric field of deteriorated insulators is studied.The results show that the spatial electric field values near the deteriorated insulators in porcelain and composite insulator strings are obviously distorted without pollution and deflection ; however , there are some problems in the detection of deteriorated insulators relying on the electric field under the polluted conditions , it is shown that although the deterioration detection can be carried out under the level II pollution state , the level IV pollution has a great impact on the deterioration detection ; in addition , it is still not suitable to carry out the detection of deteriorated insulators when the upper and lower surfaces are uneven and polluted ; finally , when the string is skewed , the influence of detection path on the distribution of insulator string deterioration curve is obvious , which must be considered when using UAV to detect the deteriorated insulator based on space electric field.

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备注/Memo

备注/Memo:
收稿日期: 2022-01-03
基金项目:国网江苏省电力有限公司科技项目( J2022097 )
作者简介:宋恒东 ( 1989- ),男,江苏徐州人,硕士,工程师,研究方向为输电线路运检;韩学春 ( 1972- ),男,山东五莲人,学士,高级工程师,研究方向为输电线路运检。
更新日期/Last Update: 2023-09-27