特高压电晕笼直流分裂导线正极性电晕起始特性分析

摘要
图/表
参考文献
相关文章 (12)

全文: PDF (764 KB)
输出: BibTeX | EndNote (RIS)

摘要为了研究特高压电晕笼分裂导线正极性电晕起始特性, 应用模拟电荷法计算绞线的表面电场, 采用一次镜像, 最外层的每一股铝线用8个模拟电荷代替, 依据极不均匀电场下电晕自持判据以及光电子二次发射过程, 计算特高压电晕笼绞线的起始电压。应用特高压电晕笼进行了单根钢芯铝绞线（LGJ）900-75导线, 6*LGJ900-75（分裂间距450）, 8*LGJ400-35（分裂间距400）导线干燥和降雨率分别为2.4mm/h, 20mm/h, 30mm/h条件下的电晕损失试验研究。通过切线法得到了三种形式导线干燥情况下的起晕电压, 计算和试验起晕电压的对比分析说明计算模型可以应用于计算特高压电晕笼直流导线正极性的起晕电压, 在此基础上进一步的分析计算表明：特高压电晕笼导线正极性电晕起始电压随着分裂数的增加而增加, 随着分裂间距的增加而降低, 随着子导线半径的增大而增大；淋雨条件下的表面粗糙度, 随着降雨率的增加而降低, 同时呈现出饱和的趋势。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	刘云鹏
	朱雷
	律方成
	谢雄杰
	尤少华

关键词 ：特高压电晕笼, 分裂导线, 模拟电荷法, 正极性电晕, 起始电压, 降雨率

Abstract：In order to study the corona onset characteristic of the positive conductor in the UHV corona cage, the charge simulation method is applied to calculate the space electric field and corona onset voltage of the stranded conductor in the corona cage. Each strand is simulated by 8 space charges, based on the corona sustainable criterion in extreme uneven electric filed and the secondary emission process of the photoelectrons. The corona loss test of the single aluminum cable steel reinforced (LGJ)900-75, 6*LGJ900-75, 8*LGJ400-35 conductors in dry and rain conditions is done in the UHV corona cage, and the chosen rain rate are 2.4mm/h, 20mm/h and 30mm/h. The tangent line method is used to determine the test corona onset voltage, and the comparative study proves that the calculation model can be used to calculate the positive corona onset voltage of the bundle conductors in the UHV corona cage. A further analysis shows that: the positive corona onset voltage increases with the bundle number, and decreases with the bundle space and also increases with the diameter of the sub -conductor; the surface irregularity coefficient decreases with the rain rate, while at the same time, it tends to be saturated.

Key words： UHV corona cage bundle conductor charge simulation method positive corona onset voltage rain rate

收稿日期: 2011-11-02 出版日期: 2013-11-27

PACS:

TM855

基金资助:国家自然科学基金资助项目（50877025）。

作者简介: 刘云鹏男,1976年生,博士后,副教授,博士生导师,从事特高压输电技术、电气设备在线检测和故障诊断等方面的研究工作。朱雷男,1986年生,博士研究生,主要从事特高压输电技术、电晕放电特性方面的研究工作。

引用本文:

刘云鹏, 朱雷, 律方成, 谢雄杰, 尤少华. 特高压电晕笼直流分裂导线正极性电晕起始特性分析[J]. 电工技术学报, 2013, 28(1): 73-79. Liu Yunpeng, Zhu Lei, Lü Fangcheng, Xie Xiongjie, You Shaohua. Analysis of the Positive Corona Onset Characteristic of the Bundle Conductors in the UHV Corona Cage. Transactions of China Electrotechnical Society, 2013, 28(1): 73-79.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2013/V28/I1/73

[1] 赵畹君. 高电压直流输电技术[M]. 北京: 中国电力出版社, 2004.
[2] 刘振亚. 特高压电网[M]. 北京: 中国经济出版社, 2005.
[3] 舒印彪, 张文亮. 特高压输电若干关键技术研究[J]. 中国电机工程学报, 2007, 27(31): 1-6.
Shu Yinbiao, Zhang Wenliang. Research of key technologies for UHV transmission[J]. Proceedings of the CSEE, 2007, 27(31): 1-6.
[4] 舒印彪, 胡毅. 特高压交流输电线路关键技术的研究及应用[J]. 中国电机工程学报, 2007, 27(36): 1-7.
Shu Yinbiao, Hu Yi. Research and application of the key technologies of UHV AC transmission line[J]. Proceedings of the CSEE, 2007, 27(36): 1-7.
[5] Clade J J, Gary C H. Predetermination of corona losses under rain: experimental interpreting and checking of a method to calculate corona losses[J]. IEEE Transactions on Power Apparatus and Systems, 1970, 89(5): 853-860.
[6] 刘云鹏, 尤少华, 万启发, 等. 特高压交流单回试验线段雨天电晕损失研究[J]. 中国电机工程学报, 2010, 30(19): 114-119.
Liu Yunpeng, You Shaohua, Wan Qifa, et al. Research on UHV AC single circuit test line corona losses under rain[J]. Proceedings of the CSEE, 2010, 30(19): 114-119.
[7] 王清亮, 张璐, 李舟, 等. 直流负极性下雨滴对导线电晕特性的影响[J]. 高压电器, 2011, 47(8): 9-17.
Wang Qingliang, Zhang Lu, Li Zhou, et al. Influence of corona characteristics of water drops on smooth conductor under negative DC voltage[J]. High Voltage Apparatus, 2011, 47(8): 9-17.
[8] 麻敏华. 电晕笼中单根光滑导线和涂污导线直流电晕特性的研究[D]. 北京: 清华大学, 2007.
[9] 赵宇明, 麻敏华, 楚金伟, 等. 电晕笼中直流导线起晕电压的测量方法[J]. 高电压技术, 2008, 34(8): 1567-1572.
Zhao Yuming, Ma Minhua, Chu Jinwei, et al. Measurement methods for DC conductor corona onset voltage in the corona cage[J]. High Voltage Engineering, 2008, 34(8): 1567-1572.
[10] Maruvada P S. Corona performance of high-voltage transmission lines[M]. London, UK: Research Studies Press Ltd, 2000.
[11] 范建斌, 李中新, 谷琛, 等. 直流电压下导线起晕电压计算方法[J]. 电工技术学报, 2008, 23(10): 100-105.
Fan Jianbin, Li Zhongxin, Gu Chen, et al. Calculation method for DC onset corona voltage[J]. Transactions of China Electrotechnical Society, 2008, 23(10): 100-105.
[12] 孟晓波, 卞星明, 陈枫林, 等. 负直流下绞线电晕起始电压分析[J]. 高电压技术, 2011, 34(9): 1797-1801.
Meng Xiaobo, Bian Xingming, Chen Fenglin, et al. Analysis on negative DC corona inception voltage of stranded conductors[J]. High Voltage Engineering, 2011, 34(9): 1797-1801.
[13] 杨津基. 气体放电[M]. 北京: 科学出版社, 1983.
[14] Ali Z, Ahamad G, Vahraz Z. A new method for calculation of corona inception voltage in stranded conductors of overhead transmission lines[C]. First International Power and Energy Conference, 2006: 571-574.
[15] 林锐. 直流正极性下导线电晕放电特性及影响因素的研究[D]. 重庆: 重庆大学, 2009.
[16] EI-Bahy M M, Abouelsaad M. Onset voltage of negative corona on stranded conductors[J]. Journal of Physics D: Applied Physics, 2007, 40(10): 3094-3101.
[17] Abdel-Salam M. Calculating the effect of high temperatures on the onset voltages of negative discharges[J]. Journal of Applied Physics, 1976, 9(12): 149-154.
[18] 卞星明, 惠建峰, 黄海鲲, 等. 气压湿度对负直流电晕特性影响的研究[J]. 中国电机工程学报, 2010, 30(4): 118-124.
Bian Xingming, Hui Jianfeng, Huang Haikun, et al. Research on negative DC corona characteristics related to air pressure and humidity[J]. Proceedings of the CSEE, 2010, 30(4): 118-124.
[19] Abdel-Salam M. Calculation of corona onset voltage for duct-type precipitators[J]. IEEE Transactions on Industry Applications, 1993, 29(2): 274-280.
[20] 李伟, 张波, 何金良, 等. 超/特高压交流输电线路电晕损失的数值仿真研究[J]. 中国电机工程学报, 2009, 29(19): 118-124.
Li Wei, Zhang Bo, He Jinliang, et al. Corona losses calculation of UHV/EHV AC transmission lines[J]. Proceedings of the CSEE, 2009, 29(19): 118-124.
[21] Lü F C, You S H, Liu Y P, et al. AC conductors’ corona-loss calculation and analysis[J]. IEEE Transactions on Power Delivery, 2012, 27(2): 877-885.
[22] 刘有为, 李继红, 李斌. 空气密度和湿度对导线电晕特性的影响[J]. 电网技术, 1990, 14(4): 46-50.
Liu Youwei, Li Jihong, Li Bin. Influence of air density and humidity on the corona performance of conductor[J]. Power System Technology, 1990, 14(4): 46-50.
[23] 宫林. 低气压下导线表面状况对电晕放电起始特性影响的研究[D]. 重庆: 重庆大学, 2008.
[24] 谢书勇, 刘成, 李政. 超高压输电导线起始电晕电压测量方法的探讨[J]. 高压电器, 1989, 25(6): 39-41.
Xie Shuyong, Liu Cheng, Li Zheng. The method for measuring initial corona of super high voltage transmission line[J]. High Voltage Apparatus, 1989, 25(6): 39-41.