Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

Article retrieval

文章检索

首页 >> 文章检索 >> 往年索引

钟罩绝缘子与瓷双伞绝缘子积污模拟对比研究

来源:电工电气发布时间:2022-10-25 13:25 浏览次数:254

钟罩绝缘子与瓷双伞绝缘子积污模拟对比研究

柳萱1,伍弘2,刘世涛2,相中华2,杨国华1,陈荣达1,马伟林1
(1 宁夏大学 物理与电子电气工程学院,宁夏 银川 750021;
2 国网宁夏电力有限公司电力科学研究院,宁夏 银川 750004)
 
    摘 要:不同外形绝缘子具有不同污秽沉积特性,以 XP-70 钟罩绝缘子与 XWP-70 瓷双伞绝缘子为研究对象,基于流体力学原理搭建多物理场绝缘子积污三维仿真模型,对比研究了在硫酸钙与二氧化硅两种污秽成分下,颗粒粒径、风速大小及直流电压对两种绝缘子污秽沉积特性的影响。仿真结果表明:相同条件下硫酸钙颗粒更易沉积于绝缘子表面;当粒径大于 30μm 时,钟罩绝缘子下表面积污不再随粒径增大而改变;当风速增加时,钟罩绝缘子下表面积污呈现轻微降低变化;在直流电压作用下钟罩绝缘子下表面积污呈“r”形分布,瓷双伞绝缘子下表面积污则呈“v”形分布。
    关键词: 钟罩绝缘子;瓷双伞绝缘子;污秽沉积特性;风速;粒径
    中图分类号:TM216     文献标识码:A     文章编号:1007-3175(2022)10-0010-05
 
Simulation Analysis of Pollution Accumulation on Bell Jar Insulators and
Porcelain Double Umbrella Insulators
 
LIU Xuan1, WU Hong2, LIU Shi-tao2, XIANG Zhong-hua2, YANG Guo-hua1, CHEN Rong-da1, MA Wei-lin1
(1 School of Physics and Electronic-Electrical Engineering, Ningxia University, Yinchuan 750021, China;
2 Electric Power Research Institute of State Grid Ningxia Electric Power Co., Ltd, Yinchuan 750004, China)
 
    Abstract: Different shapes of insulators have various fouling deposition characteristics. This paper took the XP-70 bell jar insulator and the XWP-70 porcelain double umbrella insulator as research objects. It built a fouling accumulation three-dimensional simulation model of a multi-physics field insulator based on the principle of fluid mechanics and compared the effects of particle size, wind speed, and DC voltage on the fouling deposition characteristics of the two insulators under the two fouling components and silica. The results show that the calcium sulfate particles are easier to deposit on the surface of the insulator under the same conditions. When the particle size is over 30 μm, the fouling on the lower surface of the bell insulator remains unchanged; when the wind speed increases, the fouling on the lower surface of the bell insulator slightly decreases. The fouling on the lower surface of the bell jar insulator presents in an“r”shape, and the fouling on the lower surface of the porcelain double-umbrella insulator presents in a“v”shape under the action of DC voltage.
    Key words: bell jar insulator; porcelain double umbrella insulator; fouling deposition characteristic; wind speed; particle size
 
参考文献
[1] 周渠. 电力设备外绝缘的防污闪综合措施[J] . 绝缘材料,2004(2):41-43.
[2] 宿志一,刘燕生. 我国北方内陆地区线路与变电站用绝缘子的直、交流自然积污试验结果的比较[J].电网技术,2004,28(10):13-17.
[3] LAMPE W, HOGLUND T K E, NELLIS C L, et al.Long-term tests of HVDC insulators under natural pollution conditions at the Big Eddy Test Center[J].IEEE Transactions on Power Delivery,1989,4(1) :248-259.
[4] 王彬,梁曦东,张轶博,等. 交、直流电压下复合绝缘子和瓷绝缘子的自然积污试验[J] . 高电压技术,2009,35(9):2322-2328.
[5] 王胜辉, 刘鹏, 谢堂文, 等. 自然积污绝缘子表面污秽分布特性研究[J] . 电测与仪表,2017,54(8):21-27.
[6] HALL J F, PAUL T.Wind Tunnel Studies of the Insulator Contamination Process[J].IEEE Transactions on Electrical Insulation,1981,EI-16(3):180-188.
[7] 贺博,万军,陈邦发,等. 人工模拟沙尘气候环境下线路绝缘子积污特性研究[J] . 西安交通大学学报,2008,42(12):1510-1514.
[8] 律方成,黄华,刘云鹏,等. 风洞模拟自然横风条件下绝缘子带电积污特性[J] . 高电压技术,2014,40(5):1281-1289.
[9] 樊亚东,文习山,李晓萍,等. 复合绝缘子和玻璃绝缘子电位分布的数值仿真[J] . 高电压技术,2005,31(12):1-3.
[10] 蒋兴良,李海波. 计算流体力学在绝缘子积污特性分析中的应用[J] . 高电压技术,2010,36(2):329-334.
[11] 王晶, 陈林华, 刘宇, 等. 电场对复合绝缘子的积污特性影响的探究[J] . 高电压技术,2011,37(3):585-593.
[12] 吕玉坤,王召鹏,李金岗,等. 强风环境 110kV 下 XSP-160 型瓷三伞绝缘子积污特性数值模拟[J]华北电力大学学报(自然科学版),2019,46(4):77-83.