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  2014 

基于拟积分算法的发电机局部放电在线监测技术的研究

, PP. 81-86

Keywords: 局部放电,拟积分,在线监测,定子绕组

Full-Text   Cite this paper   Add to My Lib

Abstract:

局部放电监测是发电机定子绕组绝缘状况监测的有效手段,笔者提出了拟积分(quasi-integration)局部放电信号采集算法,克服了局部放电信号时域处理方法存在的缺陷,提高了系统的精确度和分辨率。文中分析研究了各拟积分参数对积分效果的影响,并选取了适合该系统的拟积分参数,通过FPGA实现了算法。同时在实验室建立了典型的故障放电模型,构建了一套能够对发电机整个定子绕组绝缘劣化状况进行在线监测的系统,分析了该系统所捕获的故障放电图谱的合理性,得到了较好的实验效果,仿真和实验分别验证了拟积分法监测发电机局部放电的可行性和可靠性。

References

[1]  WOOD J W,SEDDING H G,HOGG W K,et al. Partial discharges in HV machines;initial considerations for a PD specification[J]. IEE Proceedings A Science,Measurement and Technology,1993,140(5):409-416.
[2]  QIN Shaozhen,BIRLASEKARAN S. The study of PD propagation phenomenon in power network[J]. IEEE Transactions on Power Delivery,2006,21(3):1083-1091.
[3]  VENEZUELA C J. Experiences in identification of partial discharge patterns in large hydrogenerators[C]//IEEE 2006 IEEE PES Transmission and Distribution Conference and Exposition Latin America.[S.l.]:IEEE,2006:1-6.
[4]  李宪栋,唐新文,石月春,等. 发电机局部放电在线监测系统现场应用探讨[J]. 水电能源科学,2011,29(10):150-154. LI Xiandong,TANG Xinwen,SHI Yuechun,et al. Discuss on site application of generator partial discharge on-line monitoring[J]. Water Resources and Power,2011,29(10):150-154.
[5]  程养春,李成榕,王 伟. 发电机局部放电脉冲沿定子绕组传播规律的研究[J]. 电网技术,2005,29(8):65-70. CHENG Yangchun,LI Chengrong,WANG Wei. Research on propagation rule of partial discharge pulses inside generator along stator windings[J]. Power System Technology,2005,29(8):65-70.
[6]  李 新,孙才新,李 剑,等. 从放电能量分布特征量识别PD类型的方法[J]. 高电压技术,2002,28(11):26-27. LI Xin,SUN Caixin,LI Jian,et al. Research on PD pattern recognition based on extracting features from PD energy distribution[J]. High Voltage Engineering,2002,28(11):26-27.
[7]  王 伟,李成榕,孟庭荣,等. 发电机定子局部放电在不同检测频段下的统计特性[J]. 高电压技术,2002,28(z1):3-4. WANG Wei,LI Chengrong,MENG Tingrong,et al. Study on PD statistic characteristics of generator stator winding insulation under the different frequency domain[J]. High Voltage Engineering,2002,28(z1):3-4.
[8]  王 伟,李成榕,孟庭荣,等. 基于传感器阈值法的局部放电信号自消噪[J]. 高电压技术,2008,34(8):1578-1582. WANG Wei,LI Chengrong,MENG Tingrong,et al. Method for PD signal self-denoising based on sensor threshold[J]. High Voltage Engineering,2008,34(8):1578-1582.
[9]  郭 俊,吴广宁,张血琴,等. 局部放电检测技术的现状和发展[J]. 电工技术学报,2005,20(2):29-35. GUO Jun,WU Guangning,ZHANG Xieqin,et al. The actuality and perspective of partial discharge detection techniques[J]. Transactions of China Electrotechnical Society,2005,20(2):29-35.
[10]  付海涛,余维坤,张松涛. 基于PDA技术的水轮发电机局部放电在线监测[J]. 大电机技术,2010(2):25-29. FU Haitao,YU Weikun,ZHANG Songtao. On-line monitoring of partial discharge for hydrogenerators based on PDA[J]. Large Electric Machine and Hydraulic Turbine,2010(2):25-29.
[11]  李润秋,董 明,孙 强,等. 标准操作冲击电压下220 kV GIS中典型缺陷局部放电特征[J]. 电网与清洁能源,2011,27(10):13-18. LI Runqiu,DONG Ming,SUN Qiang,et al. Partial discharge characteristics of typical defects in 220 kV GIS under standard switching impulse[J]. Power System and Clean Energy,2011,27(10):13-18.
[12]  陈志刚,林令知,王雷鸣. 定子槽耦合器法在发电机局部放电监测中的应用[J]. 华电技术,2010,32(12):4-6. CHEN Zhigang,LIN Lingzhi,WANG Leiming. Application of stator slot coupler method in partial discharge monitoring of generator[J]. Water Conservancy & Electric Power Machinery,2010,32(12):4-6.
[13]  张征平,喇 元,刘 炜,等. 基于双电容耦合的发电机局部放电离线式测量新方法[J]. 大电机技术,2009(6):6-9. ZHANG Zhengping,LA Yuan,LIU Wei,et al. A novel off-line method to measure the partial discharge of generator based on double coupling capacitors[J]. Large Electric Machine and Hydraulic Turbine,2009(6):6-9.
[14]  张俊安. XLPE电缆附件局部放电UHF和VHF联合检测[J]. 电网与清洁能源,2011,27(10):43-47. ZHANG Jun’an. Detection of the partial discharge signals in XLPE cable accessories based on UHF and VHF[J]. Power System and Clean Energy,2011,27(10):43-47.
[15]  FUHR J. 水轮发电机局部放电(PD)监测系统的经验[J].国外大电机,2011(2):20-30. FUHR J. Experience of the partial discharge(PD) for hydro monitoring system[J]. External Big Motor,2011(2):20-30.
[16]  吴延坤,喻岩龙,武炬臻,等. 光学方法在电力电缆局部放电测量中的研究现状[J]. 电网与清洁能源,2011,27(8):7-12. WU Yankun,YU Yanlong,WU Juzhen,et al. Application of acoustic-optical partial discharge detection in power cable[J]. Power System and Clean Energy,2011,27(8):7-12.
[17]  罗日成,李卫国,熊 浩,等. 电力变压器局部放电在线检测系统的研制[J]. 电网技术,2004,28(16):56-59. LUO Richeng,LI Weiguo,XIONG Hao,et al. Development of on-line monitoring system for partial discharge within power transformer[J]. Power System Technology,2004,28(16):56-59.
[18]  KONIG D,NARAYANA R Y. Partial discharge in electrical apparatus[M]. Berlin,Germany:VDEVERLAG,1993.
[19]  KUFFEL E,ZAENGL W S,KUFFEL J. High voltage engineering fundamentals[M]. London,Grent Britain:But-terworth,2000.
[20]  ANSI/ICEA standard for partial discharge test procedure[S]. New York,USA:IEEE Power Engineering Society,2007.
[21]  万伟江,王 伟,李成榕,等. 超高频法在发电机局部放电检测中的应用[J]. 高电压技术,2004,30(9):38-40. WAN Weijiang,WANG Wei,LI Chengrong,et al.Application of UHF in PD detection in generator[J]. High Voltage Engineering,2004,30(9):38-40.
[22]  陈宏福,黄成军,钱 勇,等. 发电机局部放电评估方法[J]. 高电压技术,2007,33(8):155-159. CHEN Hongfu,HUANG Chengjun,QIAN Yong,et al.Preliminary investigation of the assessing method for PD in generator[J]. High Voltage Engineering,2007,33(8):155-159.
[23]  满玉岩,高文胜,高 凯,等. 发电机局部放电的统计特征识别[J]. 电工技术学报,2006,21(4):41-45. MAN Yuyan,GAO Wensheng,GAO Kai,et al. Statistical recognition of discharge patterns in power generator[J]. Transactions of China Electrotechnical Society,2006,21(4):41-45.
[24]  魏燕飞,曹海翔,孙旭东,等. 基于PEEC法的发电机定子绕组线棒高频电路模型[J]. 电工电能新技术,2007,26(3):6-10. WEI Yanfei,CAO Haixiang,SUN Xudong,et al. HF circuit model of generator stator bar based on PEEC[J]. Advanced Technology of Electrical Engineering and Energy,2007,26(3):6-10.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133