电工技术学报2018，Vol.33Issue(1)：209-216,8.DOI:10.19595/j.cnki.1000-6753.tces.161566
典型伞型瓷及复合绝缘子积污特性模拟研究
Simulation of Contamination Deposition on Typical Shed Porcelain and Composite Insulators
摘要
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.关键词
数值模拟/风洞试验/积污特性/风速/粒径/电压类型Key words
Numerical simulation/wind tunnel test/contamination deposition characteristics/wind speed/particle size/voltage type分类
信息技术与安全科学引用本文复制引用
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):209-216,8.基金项目
国家电网公司科技攻关团队资助项目(GY7111053). （GY7111053）
