电工技术学报  2018, Vol. 33 Issue (1): 209-216    DOI: 10.19595/j.cnki.1000-6753.tces.161566
高电压与绝缘 |
典型伞型瓷及复合绝缘子积污特性模拟研究
吕玉坤1, 赵伟萍1, 庞广陆2, 李志超3, 卫少科4
1. 华北电力大学能源动力与机械工程学院 保定 071000;
2. 中城智慧(北京)城市规划设计研究院有限公司 北京 100835;
3. 华能发电有限责任公司太仓电厂 太仓 215424;
4. 内蒙古康远工程建设监理有限责任公司 呼和浩特 010070
Simulation of Contamination Deposition on Typical Shed Porcelain and Composite Insulators
Lü Yukun1, Zhao Weiping1, Pang Guanglu2, Li Zhichao3, Wei Shaoke4
1. School of Energy Power and Mechanical Engineering North China Electric Power University Baoding 071000 China;
2. City of Wisdom (Beijing) Planning and Design Institute Co. Ltd Beijing 100835 China;
3. Taicang Power Station of China Huaneng Group Taicang 215424 China;
4. Inner Mongolia Kang Yuan Power Engineering Supervision Co. Ltd Hohhot 010070 China
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摘要 研究典型伞型瓷及复合绝缘子的积污特性,可为绝缘子的选择提供参考。以瓷钟罩、瓷三伞和复合绝缘子为研究对象,利用多物理场耦合软件对风洞条件下绝缘子积污特性进行数值模拟研究,并将其模拟结果与本校风洞试验结果进行对比,结果表明两者积污量在数量级及随直流电压的变化趋势上一致,验证了该模拟方法的可行性。利用该方法研究了自然条件下各绝缘子的积污特性,分析了风速、粒径、电压类型对三种绝缘子积污的影响。结果表明,复合绝缘子的积污量大于同条件下瓷钟罩和瓷三伞积污量;直流电压作用下,复合绝缘子积污量的增长率大于另外两种绝缘子,且随粒径的增大先降低后升高;同一风速下,电压类型对绝缘子积污量的影响随颗粒粒径的增大而增大;交流电和不带电情况对各绝缘子积污量的影响较直流电压作用时的小。
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关键词 数值模拟风洞试验积污特性风速粒径电压类型    
Abstract:The contamination deposition characteristics of typical shed porcelain and composite insulators can be used in the insulator selection. Using multi-physics coupling software, numerical simulations on the contamination features of porcelain bell jar, porcelain three umbrella, and composite insulators in a wind tunnel were conducted, and the simulated results were compared with the tested results. The comparison shows that the results with respect to the deposit amount are at the same order of magnitude and present a similar tendency with DC voltage variation. Therefore, the rationality of the present simulation method is verified. Based on the aforementioned method, a simulation investigation of the natural contamination deposition on the above three insulators was performed to examine the effects of wind speed, particle size, and voltage type. The results indicate that under the same conditions, the deposit amount on the composite insulator is greater than those of both the porcelain bell jar and porcelain three umbrella insulators. It is found that under DC voltage, the growth rate of the pollution amount on composite insulator is greater than those of two other insulators, and it first decreases and then increases with increasing particle size. At the same wind speed, the influence of the voltage type on the insulator contamination increases as the particle size increases. In addition, the deposit amount under AC voltage and unelectrified state is less than that under DC voltage.
Key wordsNumerical simulation    wind tunnel test    contamination deposition characteristics    wind speed    particle size    voltage type   
收稿日期: 2016-09-26      出版日期: 2018-01-16
PACS: TM852  
基金资助:国家电网公司科技攻关团队资助项目(GY7111053)
作者简介: 吕玉坤 男,1964年生,副教授,研究方向为绝缘子积污特性、泵与风机节能技术以及大型回转机械经济运行等。E-mail:luyukunf@126.com;赵伟萍 女,1991年生,硕士研究生,研究方向为绝缘子积污特性。E-mail:zhaoweiping2015@163.com(通信作者)
引用本文:   
吕玉坤, 赵伟萍, 庞广陆, 李志超, 卫少科. 典型伞型瓷及复合绝缘子积污特性模拟研究[J]. 电工技术学报, 2018, 33(1): 209-216. Lü Yukun, Zhao Weiping, Pang Guanglu, Li Zhichao, Wei Shaoke. Simulation of Contamination Deposition on Typical Shed Porcelain and Composite Insulators. Transactions of China Electrotechnical Society, 2018, 33(1): 209-216.
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