全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
电网技术  2015 

重覆冰地区超大伞裙结构复合绝缘子的仿真及优化设计

DOI: 10.13335/j.1000-3673.pst.2015.07.046, PP. 2064-2068

Keywords: 超大伞裙,重覆冰,电位电场分布,有限像元法,数值仿真

Full-Text   Cite this paper   Add to My Lib

Abstract:

严重覆冰时采用大小伞结构的复合绝缘子依然出现冰凌桥接现象。为防止出现冰凌桥接和覆冰闪络,开展超大伞裙结构复合绝缘子的覆冰特性研究有着重要意义。建立220kV的超大伞裙结构复合绝缘子二维轴对称模型,并采用准静态场有限像元法进行仿真分析,对比采用不同数量的超大伞裙绝缘子在清洁和覆有干、湿冰时绝缘子的电位、电场分布。发现清洁时,超大伞裙对电位、电场分布不产生影响,在覆有干、湿冰时,超大伞裙提供的多个空气间隙,能有效改善绝缘子的电位、电场分布,特别是靠近高压端的第1个伞裙采用超大伞裙结构能改善高压端电位分布。最后结合仿真数据提出了优化后的超大伞裙结构的复合绝缘子。

References

[1]  蒋兴良,舒立春,孙才新.电力系统污秽与覆冰绝缘[M].北京:中国电力出版社,2009:242-262.
[2]  Farzaneh M,Chisholm W A.Insulators for icing and polluted environments[M].Piscataway N J:IEEE Press;Hoboken N J:J.Wiley,2009:529-590.
[3]  黎卫国,郝艳捧,熊国锟,等.覆冰复合绝缘子电位分布有限元仿真[J].电工技术学报,2012,27(12):29-35.Li Weiguo,Hao Yanpeng,Xiong Guokun,et al.Simulation and analysis of potential distribution of iced composite insulator based on finite element method[J].Transactions of China Electrotechnical Society,2012,27(12):29-35(in Chinese).
[4]  张志劲,蒋兴良,胡建林,等.间插布置方式对交流绝缘子串覆冰特性影响[J].电工技术学报,2011,26(1):170-176.Zhang Zhijin,Jiang Xingliang,Hu Jianlin,et al.Influence of the type of insulators connected with alternately large and small diameter sheds on AC icing flashover performance[J].Transactions of China Electrotechnical Society,2011,26(1):170-176(in Chinese).
[5]  蒋兴良,刘毓,张志劲,等.覆冰地区交流输电线路复合绝缘子伞裙结构的电场分布优化[J].电工技术学报,2013,39(1):210-217.Jiang Xingliang,Liu Yu,Zhang Zhijin,et al.Sheds configuration optimization of AC composite insulators used in AC transmission lines at icing areas based on electric field distribution[J].Transactions of China Electrotechnical Society,2013,39(1):210-217(in Chinese).
[6]  蒋兴良,温作铭,孙才新.复合绝缘子表面水滴撞击特性的数值模拟与伞裙结构分析[J].中国电机工程学报,2008,28(19):7-12.Jiang Xingliang,Wen Zuoming,Sun Caixin.Numerical simulation of water droplet impingement on composite insulator surface and analysis of shed configuration[J].Proceedings of the CSEE,2008,28(19):7-12(in Chinese).
[7]  梅红伟,陈金君,彭功茂.复合绝缘子采用超大伞裙结构的污闪特性[J].高电压技术,2011,37(3):606-612.Mei Hongwei,Chen Jinjun,Peng Gongmao.Pollution flashover characteristics of composite insulators installed extra large sheds[J].High Voltage Engineering,2011,37(3):606-612(in Chinese).
[8]  Ale-emran S M,Farzaneh M.Dimensioning of booster sheds for icing protection of post station insulators[J].IEEE Transactions on Dielectrics and Electrical Insulation,2014,21(6):2576-2583.
[9]  Emran A,Mahdi S,Masoud F.experimental design of booster-shed parameters for post insulatorsunder heavy icing conditions[J].IEEE Transactions on Power Delivery,2015,30(1):488-496.
[10]  Volat C,Emran S M A,Farzaneh M.Numerical simulations of ice-covered EHV post station insulator performance equipped with booster sheds[C]//2012 IEEE International Symposium on Electrical Insulation(ISEI).San Juan,PR,USA:IEEE Dielectrics and Electrical Insulation Society,2012:91-94.
[11]  Ale-emran S M,Farzaneh M.Numerical analysis of the combined effects of booster sheds and grading rings on an ice-covered EHV ceramic post insulator[C]//IEEE Electrical Insulation Conference(EIC).Ottwa,Ontario,Canada:IEEE Dielectrics and Electrical Insulation Society,2013:346-350.
[12]  Ale-emran S M,Farzaneh M.Parametric studies and improved hypothesis of booster-shed effects on post insulators under heavy icing conditions[J].IEEE Transactions on Dielectrics and Electrical Insulation,2015,22(1):420-427.
[13]  Emran S M A,Farzaneh M,Volat C.Simulation analysis of the effect of booster sheds on post insulators under icing conditions[C]//2012 Annual Report Conference on Electrical Insulation and Dielectric Phenomena(CEIDP).Montreal,Quebec,Canada:IEEE Dielectrics and Electrical Insulation Society, 2012:749-752.
[14]  邵进.基于电场分布的覆冰合成绝缘子结构特征研究[D].重庆:重庆大学,2010.
[15]  司马文霞,邵进,杨庆.应用有限元法计算覆冰合成绝缘子电位分布[J].高电压技术,2007,33(4),21-25.Sima Wenxia,Shao Jin,Yang Qing.Calculation of potential distribution to 220 kV icing non-ceramic insulators by Finite element method[J].High Voltage Engineering,2007,33(4),21-25(in Chinese).

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133