Abstract：Using the type of iced insulators connected with alternately large and small diameter sheds (CALSDS) can improve icing flashover voltage. The electric field model of ice-covered insulator string is put forward and validated by experiment tests in this paper, furthermore, the influence of the diameter of insulators with large sheds and the type of CALSDS on the electric field strength distribution is discussed. The research results show that: the potential distribution of icing insulator string with CALSDS may change greatly, whereas is lower than that with normal collocation; the effect of preventing icing is obvious using the type of CALSDS with “3+1” and “4+1” and the diameter of insulators with large sheds which is larger 100～150mm than that of normal insulator; the icing flashover voltage can be improved about fifteen to twenty percent using reasonable the type of CALSDS according to the experimental results.
张志劲, 蒋兴良, 胡建林, 孙才新. 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, Sun Caixin. Influence of the Type of Insulators Connected With Alternately Large and Small Diameter Sheds on AC Icing Flashover Performance. Transactions of China Electrotechnical Society, 2011, 26(1): 170-176.
[1] 蒋兴良, 易辉．输电线路覆冰及防护[M]．北京：中国电力出版社, 2002． [2] Lee L Y, Nellis C L, Brown J E．60 Hz tests on ice coated 500kV insulator strings[C]．IEEE/PES Summer Meeting, San Francisco, USA, 1975, Paper A75- 499-4． [3] 蒋兴良, 王波, 张志劲, 等．串长及布置方式对高海拔覆冰绝缘子串直流冰闪电压的影响[J]．中国电机工程学报, 2008, 28(3)：1-5． Jiang Xingliang, Wang Bo, Zhang Zhijin, et al. Influence of length and arrangement of iced insulator strings on DC flashover voltage at high altitude districts[J]．Proceedings of the CSEE, 2008, 28(3)：1-5． [4] 蒋兴良, 卢杰, 苑吉河, 等．输电线路绝缘子串防冰闪措施研究[J]．电网技术, 2008, 32(14)：19-24． Jiang Xingliang, Lu Jie, Yuan Jihe, et al．Study on measures to prevent icing flashover of insulation strings [J]．Power System Technolgy, 2008, 32(14)：19-24． [5] 蒋兴良, 杜辕, 林峰, 等．持久性就地成型防污闪复合涂料对绝缘子覆冰及交流冰闪电压的影响[J]. 电网技术, 2008, 32(1)：71-75． Jiang Xingliang, Du Yuan, Lin Feng, et al．Effect of PRTV on insulator string’s icing and its AC icing flashover voltage [J]．Power System Technolgy, 2008, 32(1)：71-75． [6] Sugawara N, Hokari K, Matsuoka R, et al．Insulation properties of iced various insulators during freezing rain and de-icing[C]．Sixth International Symposium on High Voltage Engineering, New Orieans, LA, USA, 1989：33-47． [7] 刘正响, 黄长学, 马文广, 等．防污增爬裙的研究与实践[J]．高电压技术, 1997, 23(4)：56-58． Liu Zhengxiang, Huang Changxue, Ma Wenguang, et al. Research and practics of the composite antipollution shed [J]．High Voltage Engineering, 1997, 23(4)：56-58． [8] Chen Qiushi, Adalbert Konrad. A review of finite element open boundary techniques for static and quasi-static electromagnetic field problems[J]．IEEE Transactions on Magnetics, 1997, 33(1)：663-676． [9] Farzaneh M, Volat C．Three-dimensional modeling of potential and electric-field distributions along an EHV ceramic post insulator covered with ice[J]．IEEE Transactions on Power Delivery, 2005, 20(3)：2006-2013． [10] 粟福衍, 贾逸梅．500kV绝缘子串人工雾淞和放电试验[J]．中国电机工程学报, 1999, 19(2)：75-78． Su Fuhen, Jia Yimei．Artificial rime covering and discharging tests of 500kV insulator string[J]. Proceedings of the CSEE, 1999, 19(2)：75-78． [11] Farzaneh M, Baker T．Insulator icing test methods and procedures：a position paper prepared by the IEEE task force on insulator icing test methods[J]．IEEE Trans. on Power Delivery, 2002, 18(4)：1503-1515． [12] 孙才新, 司马文霞, 舒立春．大气环境与电气外绝缘[M]．北京：中国电力出版社, 2002． [13] 张志劲, 蒋兴良, 马俊, 等．工作电压下110kV交流绝缘子串覆冰特性研究[J]．中国电机工程学报, 2006, 26(4)：140-143． Zhang Zhijin, Jiang Xingliang, Ma Jun, et al．Study on icing performance of 110kV insulator strings at AC service voltage[J]．Proceedings of the CSEE, 2006, 26(4)：140-143． [14] 杜辕．采用间插布置的绝缘子串交流覆冰闪络特性研究[D]．重庆：重庆大学, 2007. [15] 蒋兴良, 温作铭．过冷水滴撞击复合绝缘子表面的数值模拟[J]．高电压技术, 2008, 34(5)：888-892． Jiang Xingliang, Wen Zuoming．Numerical simulation of supercooled water droplet impingement on composite insulator surface[J]. High Voltage Engineering, 2008, 34(5)：888-892． [16] 张志劲, 蒋兴良, 孙才新, 等．低气压下特高压直流污秽复合绝缘子覆冰闪络特性研究[J]．中国电机工程学报, 2008, 28(6)：7-12． Zhang Zhijin, Jiang Xingliang, Sun Caixin, et al．Icing flashover performance of UHV DC composite insulators at low atmospheric pressure[J]. Proceedings of the CSEE, 2008, 28(6)：7-12． [17] IEC 1245．Artificial pollution tests on high-voltage insulators to be used on d.c. system[S]．Geneva, Switzerland, 1993． [18] Farzaneh M, Drapeau J F．AC flashover performance of insulators covered with artificial ice[J]．IEEE Transactions on Power Delivery, 1995, 10(2)：1038-1051． [19] 易辉, 王泉龙．线路覆冰绝缘子串防冰闪措施及分析[J]．高电压技术, 2003, 29(11)：57-58． Yi Hui, Wang Quanlong．Measures of preventing ice flashover for transmission line insulator string and analysis of mechanism[J]．High Voltage Engineering, 2003, 29(11)：57-58． [20] 胡毅．输电线路运行故障的分析与防治[J]．高电压技术, 2007, 33(3)：1-8． Hu Yi．Analysis on operation faults of transmission line and countermeasures[J]. High Voltage Engineering, 2007, 33(3)：1-8． [21] 李政敏, 庾振平, 胡琰锋．输电线路覆冰的危害及防护[J]．电瓷避雷器, 2006, 2：12-14． Li Zhengmin, Yu Zhenping, Hu Yanfeng. Transmission line regelation harm and protection[J]. Ineulators and Surge Arrester, 2006, 2：12-14． [22] 蒋兴良, 舒立春, 张志劲, 等．覆冰绝缘子长串交流闪络特性和放电过程研究[J]．中国电机工程学报, 2005, 7(14)：158-163． Jiang Xingliang, Shu Lichun, Zhang Zhijin, et al．Study on AC flashover performance and process of long iced insulator strings[J]．Proceedings of the CSEE, 2005, 7(14)：158-163． [23] 苑吉河, 蒋兴良, 张志劲, 等．低气压下三种覆冰支柱绝缘子直流闪络特性研究[J]．中国电机工程学报, 2005, 25(15)：12-15． Yuan Jihe, Jiang Xingliang, Zhang Zhijin, et al．Study on DC flashover performance of three types of iced post insulators at low atmospheric pressure[J]. Proceedings of the CSEE, 2005, 25(15)：12-15． [24] 孙才新, 舒立春, 蒋兴良, 等．高海拔、污秽、覆冰环境条件下超高压线路绝缘子交直流放电特性及闪络电压校正研究[J]．中国电机工程学报, 2002, 22(11)：115-120． Sun Caixin, Shu Lichun, Jiang Xingliang, et al．AC/DC flashover performance and its voltage correction of UHV insulators in high altitude and icing and pollution environments [J]．Proceedings of the CSEE, 2002, 22(11)：115-120． [25] Kawai M．AC flashover tests at project UHV on ice-coated insulators[J]. IEEE Trans. Power Apparatus and Systems, 1970, 89(8)：1800-1804． [26] Fujimura T, Naito K．Performance of insulators covered with snow or ice [J]．IEEE Trans. on Power Apparatus and Systems, 1979, 98(5)：1621-1631．
2011, Vol. 26 
