瓷绝缘子表面粘附颗粒的粒径分布特性及其影响因素研究

doi:10.19595/j.cnki.1000-6753.tces.180133

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摘要绝缘子表面差异性的粒径分布对沿面泄漏电流以及污闪电压具有重要影响。该文结合计算流体力学和碰撞沉积模型,对颗粒的粘附过程展开仿真研究,同时还分析了不同因素对粘附颗粒粒径的影响。结果显示,在典型气象条件下,瓷绝缘子表面的污秽颗粒的粒径分布存在统计特性,主要分布于5~50μm。此外,相对湿度和空气风速对粘附颗粒的粒径分布具有显著影响,而气动外形、电场类型和电场强度的影响相对较弱。本文研究可为后续开展更准确的绝缘子积污人工模拟试验及颗粒粒径对污闪的影响等研究提供支撑。

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	姜昀芃
	李黎
	卢明
	王如梦
	蒋逸雯
	刘泽辉

Abstract：Particle diameter distribution on insulator surface has important influence on the surface leakage current and pollution flashover voltage.The adhesion process of particle was simulated based on computational fluid dynamics and collision model, and the influences of different factors were studied. The results show that under typical meteorological conditions, the diameter distribution of adhered particles on the porcelain insulator surface has a statistic characteristics, which is mainly distributed in 5~50μm. In addition, relative humidity and wind speed have a significant effect on diameter distribution. The effects of aerodynamic type, electric field type and electric field strength are relatively weak. This work can provide powerful support for further research work on contamination simulation experiment and influence of particle diameter on pollution flashover.

Key words： Porcelain insulator contaminated particle particle diameter distribution characteristics collision adhesion model

收稿日期: 2018-01-21 出版日期: 2019-01-31

PACS:

TM852

基金资助:国家自然科学基金资助项目（51777082）

通讯作者: 李黎,男，1976年生，博士，副教授，研究方向为高电压与绝缘技术。E-mail：leeli@hust.edu.cn

作者简介: 姜昀芃男,1993年生,硕士研究生,研究方向为输变电设备外绝缘。E-mail：jiangyunpeng@hust.edu.cn

引用本文:

姜昀芃, 李黎, 卢明, 王如梦, 蒋逸雯, 刘泽辉. 瓷绝缘子表面粘附颗粒的粒径分布特性及其影响因素研究[J]. 电工技术学报, 2019, 34(3): 611-619. Jiang Yunpeng, Li Li, Lu Ming, Wang Rumeng, Jiang Yiwen, Liu Zehui. Study on Particle Diameter Distribution Characteristics and Influence Factors of Adhered Particles on the Porcelain Insulator Surface. Transactions of China Electrotechnical Society, 2019, 34(3): 611-619.

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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.180133 https://dgjsxb.ces-transaction.com/CN/Y2019/V34/I3/611

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