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...
电网技术  2011 

利用母线CVT响应电流实现变电站雷电侵入波在线监测

, PP. 203-207

Keywords: 雷电侵入波,过电压,在线监测,电容式电压互感器,等值参数

Full-Text   Cite this paper   Add to My Lib

Abstract:

介绍了110kV以上变电站雷电侵入波在线监测的基本原理,以及高频下电容式电压互感器(capacitorvoltagetransformer,CVT)回路电阻、电感、电容等值参数计算方法并通过仿真模型分析了等值参数计算误差对过电压监测的影响。提出了一种基于CVT响应电流的侵入波在线监测方法,以克服现有研究存在的不足。基于这种监测方法,开发了一种利用变电站母线CVT回路电流实现母线过电压监测的系统,通过该系统可以进行进线段侵入波电流和母线过电压的监测,实现变电站事故监测统计的自动化、智能化和信息化。最后通过电磁暂态程序(alternativetransientprogram,ATP)仿真结果和现场运行中实测波形的对比,说明了监测系统可以持续有效运行。

References

[1]  司马文霞,兰海涛,杜林.套管末屏电压传感器响应特性研究[J].中国电机工程学报,2006,26(21):172-176.
[2]  Sima Wenxia,Lan Haitao,Du Lin.Study on response characteristic of voltage sensor mounted at the tap of transformer bushing[J].Proceedings of the CSEE,2006,26(21):172-176(in Chinese).
[3]  关永刚,廖福旺,岳功昌,等.应用高频磁环并联阻尼电阻抑制变压器雷电过电压的方法[J].电网技术,2010,34(9):149-154.
[4]  Guan Yonggang,Liao Fuwang,Yue Gongchang,et al.An approach to suppress lightning overvoltage of transformer by high frequency magnetic ring with paralleled damping resistance[J].Power System Technology,2010,34(9):149-154(in Chinese).
[5]  彭向阳,张斌,余冬青,等.线路开关单相重合闸期间雷击事故及电磁暂态仿真[J].电网技术,2009,33(20):177-182.
[6]  Peng Xiangyang,Zhang Bin,Yu Dongqing,et al.Analysis on lightning stroke accident in 220 kV transmission line during single-phase reclosure of line breaker and its electromagnetic transient simulation[J].Power System Technology,2009,33(20):177-182(in Chinese).
[7]  张山,陈维江,李成榕,等.变电站10 kV进线保护段研究[J].电网技术,2007,31(1):71-74.
[8]  Zhang Shan,Chen Weijiang,Li Chengrong,et al.Study on 10 kV lead-in line protection section in substations[J].Power System Technology,2007,31(1):71-74(in Chinese).
[9]  李光范,李博,李鹏,等.特高压变压器雷电冲击伏秒特性研究[J].电网技术,2008,32(14):1-4.
[10]  Li Guangfan,Li Bo,Li Peng,et al.Study on volt-time characteristics of UHV transformer under lightning impulse[J].Power System Technology,2008,32(14):1-4(in Chinese).
[11]  王茂成,张治取,滕杰,等.1 000 kV单回特高压交流输电线路的绕击防雷保护[J].电网技术,2008,32(1):1-4.
[12]  Wang Maocheng,Zhang Zhiqu,Teng Jie,et al.Lightning shielding failure protection for 1 000 kV single circuit UHVAC transmission line[J].Power System Technology,2008,32(1):1-4(in Chinese).
[13]  兰海涛,司马文霞,姚陈果,等.高压电网过电压在线监测数据采集方法研究[J].高电压技术,2007,33(3):79-82.
[14]  Lan Haitao,Sima Wenxia,Yao Chenguo,et al.Study on data acquisition of overvoltage online monitoring system of high voltage power grid[J].High Voltage Engineering,2007,33(3):79-82(in Chinese).
[15]  明自强.高压电网过电压在线监测系统研究[D].重庆:重庆大学,2008.
[16]  蔡光显,王建兴,吴世林,等.电力系统过电压在线监测装置[J].电网技术,1995,10(1):44-46.
[17]  Cai Guangxian,Wang Jianxing,Wu Shilin,et al.An on-line device for monitoring overvoltage in power system[J].Power System Technology,1995,10(1):44-46(in Chinese).
[18]  Ghassemi F,Gale P F,Clegg B,et al.Method to measure CVT transfer function[J].IEEE Transactions on Power Delivery,2002,17(2):915-920.
[19]  王德忠.耦合电容器的高频电容与极间介质的关系[J].电力电容器,1999(4):9-16.
[20]  Wang Dezhong.Relationship between high frequency capacitance and dielectric of plate gaps in coupling capacitor[J].Power Capacitor,1999(4):9-16(in Chinese).
[21]  王洪鹏.CVT高频特性的测量及影响因素[J].电力电容器与无功补偿,2009,30(6):54-58.
[22]  Wang Hongpeng.High frequency characteristics measurement and influence factors of capacitor voltage transformer[J].Power Capacitor & Reactive Power Compensation,2009,30(6):54-58(in Chinese).
[23]  卡兰塔罗夫,采伊特林.电感计算手册[M].陈汤铭,译.北京:机械工业出版社,1992:22-137.
[24]  邱关源.电路[M].北京:高等教育出版社.1999:48-196.
[25]  解广润.电力系统过电压[M].北京:水利电力出版社,1985:136-194.
[26]  常美生.特高压输电线路的防雷性能分析[J].电力学报,1997,12(2):28-31.
[27]  Chang Meisheng.Study on UHVAC overhead transmission line shielding properties[J].Journal of Electric Power,1997,12(2):28-31(in Chinese).
[28]  李洪涛.500 kV变电站雷电侵入波保护研究[D].重庆:重庆大学,2006.
[29]  匡洪海,肖伸平.500 kV变电站雷击保护的建模分析[J].高压电器,2008,44(5):409-411.
[30]  Kuang Honghai,Xiao Shenping.Modeling and analysis of lightning protection for 500kV substation[J].High Voltage Apparatus,2008,44(5):409-411(in Chinese).
[31]  贺恒鑫.计及工作电压的直流输电线路绕击特性计算模型研究[D].武汉:华中科技大学,2007.
[32]  Eriksson A J.An improved electrogeometric model for transmission line shielding analysis[J].IEEE Transactions on Power Delivery,1987,2(2):871-886.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133