考虑互感器传变特性的输电线路暂态保护雷击干扰与线路故障识别方法

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摘要当雷击线路或杆塔未导致故障时,线路上的行波响应仅包含雷电等效激励源造成的响应,不包含故障激励源引起的响应,而接地故障引起的行波响应包含故障等效电源接入传输系统的过程。本文以实测CVT与CT宽频传输特性为基础,建立CVT与CT传递模型,分析CVT二次侧输出包含的附加振荡对行波识别与标定的影响。以CVT与CT二次侧输出波形作为样本数据,利用瞬时功率对故障行波进行刻画,通过主成分分析聚类的方法,将故障与雷击干扰的瞬时功率曲线簇投影至主成分分析坐标系上。故障与雷击干扰的行波数据会在坐标系上形成各自的聚类点簇中心,利用支持向量机划分分类面,对故障与雷击干扰进行判别。大量数据测试表明,该雷击干扰识别方法对故障与雷击干扰的分类可行、有效。

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	束洪春
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关键词 ： CVT二次侧输出, 雷击干扰, 故障, 主成分分析, 聚类分析, 支持向量机

Abstract：In the case of lightning striking towers or lines without causing fault, the response of transmission line contains characteristic of lightning current without the characteristic of fault. However, when the fault occurs, there is characteristic of fault current impulse. CVT and CT transfer functions are put forward based on the voltage transfer characteristics and current transfer characteristics. It is found that the oscillation caused by the transfer function of CVT in the simulation includes oscillation caused by poles of transfer function and the numerical oscillation. The CVT secondary voltage and the CT secondary current are used to calculate the instantaneous power, which is selected as the characteristic vector in this paper. The instantaneous power curve clusters formed by different fault types and lightning disturbance are transformed to principle component analysis(PCA) axis via PCA. The bulks of traveling wave data form lightning disturbance cluster center and the fault cluster center. SVM is chosen to determine lightning disturbance from faults. The proposed method is confirmed correct and effective by massive measured field travelling wave data.

Key words： CVT secondary waveform lightning disturbance fault principle component analysis cluster analysis support vector machine

收稿日期: 2014-07-14 出版日期: 2015-04-13

PACS:

TM773

基金资助:国家自然科学基金（U1202233、51267009）,云南省重点项目（2011FA032）和高等学校博士学科点专项科研基金（20105314110001）资助项目

作者简介: 束洪春男,1961年生,博士,教授,主要从事电力系统新型继电保护与故障测距、故障录波、数字信号处理等方面的教研工作。曹璞璘男,1986年生,博士研究生,研究方向为新型继电保护与故障测距。

引用本文:

束洪春,曹璞璘,杨竞及,董俊,田鑫萃. 考虑互感器传变特性的输电线路暂态保护雷击干扰与线路故障识别方法[J]. 电工技术学报, 2015, 30(3): 1-12. Shu Hongchun,Cao Pulin,Yang Jingji,Dong Jun,Tian Xincui. A Method to Distinguish Between Fault and Lightning Disturbance on Transmission Lines Based on CVT Secondary Voltage and CT Secondary Current. Transactions of China Electrotechnical Society, 2015, 30(3): 1-12.

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[1] 司大军. 输电线路行波保护新方法研究[D]. 哈尔滨: 哈尔滨工业大学, 2004.
[2] 张保会, 哈恒旭, 吕志来. 利用单端暂态量实现超高压输电线路全线速动保护新原理研究(一)——故障暂态过程分析及实现单端暂态量保护的可行性[J]. 电力自动化设备, 2001, 21(6): 1-5. Zhang Baohui, Ha Hengxu, Lü Zhilai. Study of non- unit transient-based whole-line high speed protection for EHV transmission line part 1: fault transient analysis and the feasibility of non-unit transient protection[J]. Electric Power Automation Equipment, 2001, 21(6): 1-5.
[3] Dommel H W, Michels J M. High speed relaying using travelling wave transient analysis[C]. IEEE PES Winter Meeting. NewYork: 1978.
[4] Bo Z Q. A new non-communication protection technique for transmission lines[J]. IEEE Transactions on Power Delivery, 1998, 13(4): 1073-1078.
[5] 任立, 董新洲, 施慎行, 等. 极化电流行波方向继电器在带并联电抗器输电线上的特性[J]. 电力系统自动化, 2013, 37(21): 169-175. Ren Li, Dong Xinzhou, Shi Shenxing, et al. Characte- ristics of polarized current travelling wave-based direc- tional relay in transmission lines with shunt reactors[J]. Automation of Electric Power Systems, 2013, 37(21): 169-175.
[6] Bollen M H J. Traveling-wave-based protection of double-circuit lines[J]. IEE Proceedings C Generation, Transmission and Distribution, 1993, 140(1): 37-47.
[7] Lee H, Mousa A M. GPS Travelling wave fault locator systems: investigation into the anomalous measurements related to lightning strikes[J]. IEEE Transactions on Power Delivery, 1996, 11(3): 1214- 1223.
[8] 段建东, 任晋峰, 张保会, 等. 超高速保护中雷电干扰识别的暂态法研究[J]. 中国电机工程学报, 2006, 26(23): 7-13. Duan Jiandong, Ren Jinfeng, Zhang Baohui, et al. Study of transient approach of discriminating lightning disturbance in ultra-high-speed protection[J]. Procee- dings of the CSEE, 2006, 26(23): 7-13.
[9] 董杏丽, 葛耀中, 董新洲. 行波保护中雷电干扰问题的对策[J]. 中国电机工程学报, 2002, 22(9): 74-78. Dong Xingli, Ge Yaozhong, Dong Xinzhou. Effect of lightning on protection based on travelling waves[J]. Proceedings of the CSEE, 2002, 22(9): 74-78.
[10] 王明军. 电网雷击扰动识别方法及其应用[D]. 济南: 山东大学, 2012.
[11] 王刚, 李海锋, 赵建仓, 等. 基于小波多尺度分析的输电线路直击雷暂态识别[J]. 中国电机工程学报, 2004, 24(4): 139-144. Wang Gang, Li Haifeng, Zhao Jiancang, et al. Identification of transients on transmission lines caused by direct lightning strokes based on multiresolu- tion signal decomposition[J]. Proceedings of the CSEE, 2004, 24(4): 139-144.
[12] 邹贵彬, 高厚磊, 朱峰, 等. 输电线路雷击与故障的积分识别方法[J]. 电力系统保护与控制, 2012, 40(9): 43-48. Zou Guibin, Gao Houlei, Zhu Feng, et al. Integral identification method of lightning stroke and fault for transmission line[J]. Power System Protection and Control, 2012, 40(9): 43-48.
[13] 司大军, 束洪春, 陈学允, 等. 输电线路雷击的电磁暂态特征分析[J]. 中国电机工程学报, 2005, 25(7): 64-69. Si Dajun, Shu Hongchun, Chen Xueyun, et al. Study on characteristics and identification of transients on transmission lines caused by lightning stroke[J]. Proceedings of the CSEE, 2005, 25(7): 64-69.
[14] 束洪春, 张斌, 张广斌, 等. 基于可拓融合的±800kV 直流输电线路雷击干扰识别方法[J]. 中国电机工程学报, 2011, 31(7): 102-111. Shu Hongchun, Zhang Bin, Zhang Guangbin, et al. Identification of lightning disturbance in uhvdc trans- mission lines using extension theory[J]. Proceedings of the CSEE, 2011, 31(7): 102-111.
[15] 贺家李, 宋从矩. 电力系统继电保护原理[M]. 北京: 中国电力出版社, 2004.
[16] 段建东, 张保会, 李鹏, 等. 超高压输电线路新单端暂态量保护[J]. 中国电机工程学报, 2007, 27(7): 45-51. Duan Jiandong, Zhang Baohui, Li Peng, et al. Principle and algorithm of non-unit transient-based protection for ehv transmission lines[J]. Proceedings of the CSEE, 2007, 27(7): 45-51.
[17] 宋国兵, 李森, 康小宁, 等. 一种新相模变换矩阵[J]. 电力系统自动化, 2007, 31(14): 57-60. Song Guobing, Li Sen, Kang Xiaoning, et al. A novel phase-mode transformation matrix[J]. Automation of Electric Power Systems, 2007, 31(14): 57-60.
[18] 唐金锐, 尹项根, 张哲, 等. 零模检测波速度的迭代提取及其在配电网单相接地故障定位中的应用[J]. 电工技术学报, 2013, 28(4): 202-211. Tang Jinrui, Yin Xianggen, Zhan Zhe, et al. Iterative extraction of detected zero-mode wave velocity and its application in single phase-to-ground fault location in distribution networks[J]. Transactions of China Electrotechnical Society, 2013, 28(4): 202-211.
[19] Pearson K. On Lines and Planes of closest fit to systems of points in space[J]. Philosophical Magazine, 1901, 2(11): 559-572.
[20] Jolliffe I T. Principal component analysis, 2nd Edition [M]. New York, USA: Springer, 2002: 1-9.
[21] 陈妮亚, 钱政, 孟晓风, 等. 基于空间相关法的风电场风速多步预测模型[J]. 电工技术学报, 2013, 28(5): 15-21. Chen Niya, Qian Zheng, Meng Xiaofei, et al. Multi- step ahead wind speed forecasting model based on spatial correlation and support vector machine[J]. Transactions of China Electrotechnical Society, 2013, 28(5): 15-21.
[22] 史丽萍, 王攀攀, 胡泳军, 等. 基于骨干微粒群算法和支持向量机的电机转子断条故障诊断[J]. 电工技术学报, 2014, 29(1): 147-155. Shi Liping, Wang Panpan, Hu Yongjun, et al. Broken rotor bar fault diagnosis of induction motors based on bare-bone particle swarm optimization and support vector machine[J]. Transactions of China Electrotech- nical Society, 2014, 29(1): 147-155.
[23] Vermeulen H J, Dann L R, van Roojen J. Equivalent circuit modeling of a capacitive voltage transformer for power system harmonic frequencies[J]. IEEE Transactions on Power Delivery, 1995, 10(4): 1743- 1749.
[24] 王志华, 尹项根, 张小波, 等. 利用CVT捕捉电压行波实现故障测距的分析与实践[J]. 电力系统自动化, 2004, 28(22): 63-68. Wang Zhihua, Yin Xianggen, Zhang Xiaobo. Analysis and practice of fault location by voltage traveling wave of CVT[J]. Automation of Electric Power Systems, 2004, 28(22): 63-68.
[25] 吴茂林. 变电站互感器宽频传输特性与接地网瞬态特性的研究[D]. 保定: 华北电力大学, 2003.
[26] 吴宁. 电网络分析与综合[M]. 北京: 科学出版社, 2003.
[27] 王斌, 彭宗仁. 500kV线路绝缘子电压分布的有限元法计算[J]. 电瓷避雷器, 2003(1): 13-15. Wang Bin, Peng Zongren. A finite element method for the calculation of the voltage distribution along the 500kv line insulators[J]. Insulators and Surge Arresters, 2003(1): 13-15.
[28] 束洪春, 司大军, 于继来. 雷击输电线路电磁暂态仿真[J]. 电力系统自动化, 2005, 29(17): 68-71, 92. Shu Hongchun, Si Dajun, Yu Jilai. New electro- magnetic transient simulation approach considering impulsive corona and frequency-dependence line para- meters[J]. Automation of Electric Power Systems, 2005, 29(17): 68-71, 92.