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...

配电线路单相接地行波保护的原理与算法

, PP. 154-160

Keywords: 继电保护,配电线路,中性点非有效接地,单相接地保护,行波,小波变换

Full-Text   Cite this paper   Add to My Lib

Abstract:

为识别中性点非有效接地系统单相接地故障,提出了一种配电线路单相接地行波保护方案。它根据线路侧初始电流行波与母线端初始电压行波的极性关系构成故障方向判别元件。为了提高保护的可靠性,同时有效区分单相接地故障和相间故障,利用工频电流和电压信号构成闭锁判据。讨论了该保护的原理、算法和构成方案并分析了其动作特性。仿真表明,该保护能够很好地解决中性点非有效接地系统单相接地保护问题,具有动作可靠、迅速,构成简单等特点,并且不受中性点接地方式的影响。

References

[1]  刘翔,郭克勤,叶国雄,等.电磁式电压互感器冲击电压响应特性试验研究[J].高电压技术,2011,37(10):2385-2390. Liu Xiang,Guo Keqin,Ye Guoxiong,et al.Experimental study on the impulse-voltage transmission characteristics of inductive voltage transformers[J].High Voltage Engineering,2011,37(10):2385-2390(in Chinese).
[2]  周超,何正友,罗国敏.电磁式电压互感器暂态仿真及行波传变特性分析[J].电网技术,2007,31(2):84-89. Zhou Chao,He Zhengyou,Luo Guomin.Transient simulation of electromagnetic potential transformer and analysis on its traveling wave transfer characteristics[J].Power System Technology,2007,31(2):84-89(in Chinese).
[3]  曾祥君,刘正谊,屈明志,等.互感器暂态行波传输特性仿真分析与实验测试[J].长沙理工大学学报:自然科学版,2004,1(1):71-75. Zeng Xiangjun,Liu Zhengyi,Qu Mingzhi,et al.Simulative analysis and experimental test of the transmission characteristics of transient traveling-wave in transformer[J].Journal of Hunan Light Industry College:Science Edition,2004,1(1):71-75(in Chinese).
[4]  Ackerman P.Ground selector for ungrounded three-phase distribution systems[J].Transactions of the American Institute of Electrical Engineers,1923,13:518-526.
[5]  Lloyd F H, Vivian J H.Sensitive ground protection for radial distribution feeders[J].Transactions of the American Institute of Electrical Engineers,1940,59(2):84-90.
[6]  Roberts J,Altuve H,Hou D.Review of ground fault protection methods for grounded ungrounded and compensated distribution systems[C]//Proc. 28th Annual Western Protective Relaying Conference.Spokane,USA:IEEE Power System Relaying Committee,2001:1-41.
[7]  曾祥君,尹项根,张哲,等.配电网接地故障负序电流分布及接地保护原理研究[J].中国电机工程学报,2001,21(6):85-90. Zeng Xiangjun,Yin Xianggen,Zhang Zhe,et al.Study for negative sequence current distributing and ground fault protection in middle voltage power systems[J].Proceedings of the CSEE,2001,21(6):85-90(in Chinese).
[8]  Gross T E.Sensitive ground protection for transmission lines and distribution feeders[J].Transactions of the American Institute of Electrical Engineers,1941,60(11):968-971.
[9]  李嘉陵.在消弧线圈接地系统中利用五次谐波零序功率方向鉴别故障线路[J].继电器,1975(2):26-28. Li Jialing.Identify fault feeder in compensated grounded system using five harmonic zero-sequence power direction[J].Relay,1975(2):26-28(in Chinese).
[10]  AIEE Committee.Sensitive ground protection[J].Transactions of the American Institute of Electrical Engineers,1950,69(1):473-476.
[11]  张树文,李文毅,米增强,等.小电流接地系统单相接地保护原理和技术综述[J].电力情报,1994,5(2):1-4. Zhang Shuwen,Li Wenyi,Mi Zengqiang,et al.Survey of protective principal and technique in distribution system with neutral non-effective grounding[J].Information on Electric Power,1994,5(2):1-4(in Chinese).
[12]  Lubich D H.High resistance grounding and fault finding on three phase three wire(delta)power systems [C]//Textile,Fiber and Film Industry Technical Conference.Greenville,USA:IEEE,1997:1-5.
[13]  Zhu Ke,Zhang Peng,Wang Wencong,et al.Controlled closing of PT delta winding for identifying faulted lines[J].IEEE Transactions on Power Delivery,2011,26(1):79-86.
[14]  Bergeal J,Berthet L,Grob O,et al.Single-phase faults on compensated neutral medium voltage networks [C]//12th International Conference on Electricity Distribution.Paris,France:CIRED,1993:2.9.1-2.9.5.
[15]  Chaari O,Meunier M,Brouaye F.Wavelets:a new tool for the resonant grounded power distribution systems relaying[J].IEEE Transactions on Power Delivery,1996,11(3):1301-1308.
[16]  郝玉山,杨以涵,任元恒,等.小电流接地微机选线的群体比幅比相原理[J].电力情报,1994,5(2):15-19. Hao Yushan,Yang Yihan,Ren Yuanheng,et al.Principle of magnitude & phase comparison for micro-computer based small current fault line selection[J].Information on Electric Power,1994,5(2):15-19(in Chinese).
[17]  Dong Xinzhou,Shi Shenxing.Identifying single phase to ground fault feeder in neutral non-effectively grounded distribution system using wavelet transform[J].IEEE Transactions on Power Delivery,2008,23(4):1829-1837.
[18]  Chamia M,Liberman S.Ultra high speed relay for EHV/UHV transmission lines-development,design and application[J].IEEE Transactions on Power Apparatus and Systems,1978,97(6):2104-2116.
[19]  董新洲,耿中行,葛耀中,等.小波变换应用于电力系统故障信号分析初探[J].中国电机工程学报,1997,17(6):421-424. Dong Xinzhou,Geng Zhongxing,Ge Yaozhong,et al.The application of wavelet transform to power system fault signal analysis[J] Proceedings of the CSEE,1997,17(6):421-424(in Chinese).
[20]  Dong Xinzhou,Ge Yaozhong,He Jiali.Surge impedance relay[J].IEEE Transactions on Power Delivery,2005,20(2):1247-1256.
[21]  董新洲,王世勇,施慎行.极化电流行波方向继电器[J].电力系统自动化,2011,35(21):78-83,100. Dong Xinzhou,Wang Shiyong,Shi Shenxing.Polarized current travelling-wave based directional relay[J].Automation of Electric Power Systems,2011,35(21):78-83,100(in Chinese).
[22]  施慎行,董新洲,周双喜.单相接地故障行波分析[J].电力系统自动化,2005,29(23):29-32,53. Shi Shenxing,Dong Xinzhou,Zhou Shuangxi.Analysis of single-phase-to-ground fault generated traveling waves[J].Automation of Electric Power Systems,2005,29(23):29-32,53(in Chinese).

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133