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...
高压电器  2015 

基于FDTD的GIS中电磁波传播特性仿真研究与分析

, PP. 178-182

Keywords: GIS, 局部放电, 有限时域差分法(FDTD), 特高频

Full-Text   Cite this paper   Add to My Lib

Abstract:

该文采用时域有限差分法研究电磁波信号在GIS中的传播特性,从而为GIS局放超高频在线检测提供借鉴与参考。首先参照GIS实际试验装置进行建模,然后分别研究了激励源脉冲宽度与幅值对电磁波传播的影响、电磁波在GIS筒体内传播的时延特性、GIS结构变化对电磁传播特性的影响。仿真结果表明,电磁波信号幅值与衰减速度与激励源的脉冲宽度与幅值关系密切,利用此特征可以帮助判别局放源的种类和严重程度;电磁波信号在GIS内传播时呈现明显的时延和幅值衰减特性,此特征有利于进行局放源的定位;GIS结构变化对电磁波的幅值及信号特征均有影响,因此应按传播特性选择传感器放置点,以取得更好的检测效果。

References

[1]  邱毓昌.GIS装置及其绝缘技术[M]. 北京:水利电力出版社,1994.
[2]  苑 舜.高压开关设备状态监测与诊断技术[M]. 北京:机械工业出版社,2001.
[3]  肖 燕,郁惟镛.GIS中局部放电在线监测研究的现状与展望[J]. 高电压技术,2005,31(1):47-49. XIAO Yan,YU Weiyong. Present status and prospect of research of on-line partial discharge monitoring system in GIS[J]. High Voltage Engineering,2005,31(1): 47-49.
[4]  王建生,邱毓昌.气体绝缘开关设备中局部放电的在线监测技术[J]. 电工电能新技术,2000,19(4):44-48. WANG Jiansheng,QIU Yuchang. On-line partial discharge monitoring techniques for gas insulated substations[J]. Advanced Technology of Electrical Engineering and Energy,2000,19(4): 44-48.
[5]  钱  勇,黄成军,江秀臣,等.GIS中局部放电在线监测现状及发展[J]. 高压电器,2004,40(6):453-456. QIAN Yong,HUANG Chengjun,JIANG Xiuchen,et al. Current status and development of PD online monitoring technology in GIS[J]. High Voltage Apparatus,2004,40(6): 453-456.
[6]  YEE K S. Numerical solution of initial boundary value problems involving Maxwell’s equations in isotropic media[J]. IEEE Transactions on Antennas and Propagation,1966,14(3): 302-307.
[7]  JUDD M D,HAMPTON B F,FARISH O. Modeling partial discharge excitation of UHF signals in wave guide structures using Green’s functions[J]. IEE Proc. Sci. Meas. Technol.,1996,143(1): 63-70.
[8]  JUDD M D,FARISH O,HAMPTON B F. The excitation of UHF signals by partial discharges in GIS[J]. IEEE Trans. on Dielectrics and Electrical Insulation,1996,3(2): 213-228.
[9]  HIKITA M,OHTSUKA S,HOSHINO T,et al. Propagation properties of PD-induced electromagnetic wave in GIS model tank with T branch structure[J]. IEEE Transactions on Dielectrics and Electrical Insulation,2011,18(1): 256-263.
[10]  龙锦壮,王克涛,赵 鑫,等.一种工程实用的GIS定量检漏方法[J]. 电网与清洁能源,2013,29(6):67-70. LONG Jinzhuang,WANG Ketao,ZHAO Xin,et al. A practical engineering method for GIS leaking quantitative detection[J]. Power System and Clean Energy,2013,29(6):67-70.
[11]  周 凯,李旭涛,黄华勇,等.电缆终端安装刀痕缺陷的局部放电特性分析[J].电力系统保护与控制,2013,41(10):104-110. ZHOU Kai,LI Xutao,HUANG Huayong,et al.Analysis of partial discharge characteristics for installing cutting defects in cable terminations[J]. Power System Protection and Control,2013,41(10):104-110.
[12]  夏成军,李 勇,金兵梅,等.基于护套电流和的110 kV GIS终端电缆行波故障定位研究[J]. 电力系统保护与控制,2013,41(22):91-97. XIA Chengjun,LI Yong,JIN Bingmei,et al.Fault location of 110 kV GIS terminal cable by traveling wave based on the sum of the sheath current[J]. Power System Protection and Control,2013,41(22):91-97.
[13]  杨志超,范立新,杨成顺,等.基于GK模糊聚类和LS-SVC的GIS局部放电类型识别[J].电力系统保护与控制,2014,42(20):38-45. YANG Zhichao,FAN Lixin,YANG Chengshun,et al.Identification of partial discharge in gas insulated switchgears based on GK fuzzy clustering & LS-SVM[J]. Power System Protection and Control,2014,42(20):38-45.
[14]  HIKITA M, OHTSUKA S, TESHIMA T. Examination of electromagnetic mode propagation characteristics in straight and L-section GIS model using FD-TD analysis[J]. IEEE Trans. on Dielectrics and Electrical Insulation, 2007,14(6): 1477-1483.
[15]  OKABE S,KANEKO S,YOSHIMURA M,et al. Partial discharge diagnosis method using electromagnetic wave mode transformation in gas insulated switchgear[J]. IEEE Trans. on Dielectrics and Electrical Insulation, 2007, 14(3): 702-709.
[16]  OKABE S, KANEKO S. Electromagnetic wave propagation in a coaxial pipe GIS model[J]. IEEE Trans. on Dielectrics and Electrical Insulation, 2007, 14(5): 1161-1169.
[17]  李 信,李成榕,李亚莎,等.有限时域差分法对GIS局部放电传播的分析[J]. 中国电机工程学报,2005,25(17):150-155. LI Xin, LI Chengrong, LI Yasha, et al. Analysis on partial discharge in gis by FDTD method[J]. Proceedings of the CSEE,2005,25(17): 150-155.
[18]  黄兴泉,康书英,李泓志.GIS局部放电超高频检测法有关问题的仿真研究[J]. 电网技术,2006,30(7):37-40. HUANG Xingquan, KANG Shuying,LI Hongzhi. Research on ultra-high-frequency method for detection of partial discharge in GIS[J]. Power System Technology, 2006,30(7): 37-40.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133