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...

一种分裂导线直流电晕起晕电压的计算方法

, PP. 177-182

Keywords: 直流电晕,起晕电压,分裂导线

Full-Text   Cite this paper   Add to My Lib

Abstract:

提出了一种分裂导线直流电晕起晕电压的计算方法,其核心思想是将分裂导线的二维电场分布下的起晕问题转化成相对简单的导线-圆筒结构的一维电场分布下的起晕问题,其中,等效导线-圆筒结构的电场分布与分裂导线下最大电场强度方向的电场分布相同,等效导线-圆筒结构的导线半径与分裂导线子导线半径相同。搭建了电晕实验模型,通过直流起晕实验,分别获得了分裂导线施加正、负极性电压起晕后的电流-电压特性曲线,并用线性拟合的方法进一步获得了几种分裂导线结构的起晕电压。实验结果与所提计算结果吻合,验证了本文所提计算方法的有效性。

References

[1]  周浩, 余宇红. 我国发展特高压输电中一些重要问题的讨论[J]. 电网技术, 2005, 29(12): 1-9.
[2]  Zhou Hao, Yu Yuhong. Discussion on several important problems of developing UHV AC transmission in China[J]. Power System Technology, 2005, 29(12): 1-9.
[3]  毛文奇, 刘海燕, 徐华, 等. 特高压输电对环境影响的讨论[J]. 电力建设, 2004, 25(8): 54-56.
[4]  Mao Wenqi, Liu Haiyan, Xu Hua, et al. Discussion about impact of EHV transmission on environment[J]. Electric Power Construction, 2004, 25(8): 54-56.
[5]  McAllister I W, Crichton G C, Bregnsbo E. Experimental study on the onset of positive corona in atmospheric air[J]. Journal of Applied Physics, 1979, 50(11): 6797-6805.
[6]  刘正响, 陆宠惠. 海拔高度对导线起晕电压影响的研究[J]. 高电压技术, 1988, 14(3): 38-41.
[7]  Liu Zhenxiang, Lu Chonghui. The influence of altitude on corona starting voltages[J]. High Voltage Engineering, 1988, 14(3): 38-41.
[8]  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.
[9]  Lowker J J, Alessandro F D. Onset corona fields and electrical breakdown criteria[J]. Journal of Physics D: Applied Physics, 2003, 36: 2673-2682.
[10]  Parekh H, Srivastava K D. Effect of avalanche space charge field on the calculation of corona onset voltage[J]. IEEE Transactions on Electrical Insulation, 1979, EI-14(4): 181-192.
[11]  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.
[12]  Liu Youwei, Li Jihong, Li Bin. The effect of air density and humidity on the corona performance of conductor[J]. Power System Technology, 1990, 14(4): 46-50.
[13]  Peek F W. Dielectric phenomena in high voltage engineering[M]. New York: Mc-Graw-Hill, 1929.
[14]  Bian Xingming, Wang Liming, Macalpine, et al. Positive corona inception voltages and corona currents for air at various pressures and humidities[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2010, 17(1):63-70.
[15]  Bahy EI M M. Onset voltage of negative corona in point-cup Gaps[C]. Proceedings of the Conference on Electrical Insulation and Dielectric Phenomena, Albuquerque, 2002: 159-163.
[16]  Olsen R G, Phillips D B, Pedrow P D. Extrapolation of a corona streamer onset criterion to general convex conductor surface[J]. Proceedings of the 10th Internations Symposium on HV Engineering, Montreal, 1997, 6: 181-184.
[17]  Aleksandrov G N. Physical conditions for the formation of analternating-current corona discharge [J]. Soviet Phys. Tech. Phys., 1956: 1714-1726.
[18]  Sarma M P, Janischewskyj W D C. Corona on smooth conductors in air[J]. Proceedings of IEE, 1969, 116(1): 161-166.
[19]  Phillips D B, Olsen R G, Pedrow P D. Corona onset as a design optimization criterion for high voltage hardware[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2000, 7(6): 744-751.
[20]  Kenichi Yamazaki, Robert G Olsen. Application of a corona onset criterion to calculation of corona Onset voltage of stranded conductors[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2004, 11(4): 674-680.
[21]  倪光正. 工程电磁场原理[M]. 北京:高等教育出版社, 2002.
[22]  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.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133