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...

检测电力变压器绕组变形的扫频阻抗法研究

DOI: 10.13334/j.0258-8013.pcsee.2015.17.027, PP. 4505-4516

Keywords: 变压器绕组变形,扫频阻抗法,短路阻抗法,频率响应分析法,现场测试

Full-Text   Cite this paper   Add to My Lib

Abstract:

为了有效诊断变压器绕组变形,该文提出一种新型变压器状态检测方法——扫频阻抗法,并基于其基本理论,建立了一套变压器绕组变形测试系统,在深入探讨该测试系统的性能后,对正常和发生短路故障及局部凹陷故障的变压器进行了测量,理论分析了发生故障后的扫频阻抗曲线变化情况。结果表明:扫频阻抗系统具有较高的测试重复性与稳定性,且其50Hz处的阻抗值基本等于额定短路阻抗;较高的激励电压能够有效抑制空间噪声干扰;扫频阻抗曲线比频响曲线更为稳定和平滑,且在中高频段时两者呈现轴对称关系;绕组发生短路及凹陷故障的扫频阻抗曲线的差异极为明显,证明了扫频阻抗法用于变压器绕组变形检测的可行性。最后通过现场测试,验证了扫频阻抗法的有效性。

References

[1]  刘剑,刘开培,周仕杰,等.基于LS-SVM的变压器最优维护周期研究[J].中国电机工程学报,2012,32(22):94-103. Liu Jian,Liu Kaipei,Zhou Shijie,et al.Research on optimal transformer maintenance scheme based on LS-SVM[J].Proceedings of the CSEE,2012,32(22):94-103(in Chinese).
[2]  郭创新,王越,王媚,等.表征内部潜伏性故障的变压器时变停运模型研究[J].中国电机工程学报,2013,33(01):63-69. Guo Chuangxin,Wang Yue,Wang Mei,et al.Time-varying outage model for transformers representing internal latent fault[J].Proceedings of the CSEE,2013,33(01):63-69(in Chinese).
[3]  朱永利,尹金良.组合核相关向量机在电力变压器故障诊断中的应用研究[J].中国电机工程学报,2013,33(22):68-74. Zhu Yongli,Yin Jinliang.Study on application of multi-kernel learning relevance vector machines in fault diagnosis of power transformers[J].Proceedings of the CSEE,2013,33(22):68-74(in Chinese).
[4]  刘锐,李金忠,张书琦,等.大型变压器现场加热干燥方法的研究与应用[J].中国电机工程学报,2012,32(01):193-198. Liu Rui,Li Jinzhong,Zhang Shuqi,et al.Study on the on-site heating method for large-scale power transformers[J].Proceedings of the CSEE,2012,32(01):193-198(in Chinese).
[5]  金文龙,陈建华,李光范,等.全国110 kV及以上等级电力变压器短路损坏事故统计分析[J].电网技术,1999,23(6):70-74. Jin Wenlong,Chen Jianhua,Li Guangfan,et al.Statistics and analysis on power tranformer damages caused by short-circuit fault in 110 kV and higher voltage classes[J].Power System Technology,1999,23(6):70-74(in Chinese).
[6]  王璋奇,王孟.电力变压器绕组轴向振动稳定性分析[J].中国电机工程学报,2002,22(7):24-28. Wang Zhangqi,Wang Meng.Stability of axial vibration of power transformer windings[J].Proceedings of the CSEE,2002,22(7):24-28(in Chinese).
[7]  王世山,李彦明.电力变压器绕组电动力的分析计算[J].高压电器,2002,38(04):22-25. Wang Shishan,Li Yanming.Computation of electrodynamic force on windings of power transformer [J].High Voltage Apparatus,2002,38(04):22-25(in Chinese).
[8]  王世山,汲胜昌,李彦明.电缆绕组变压器短路时线圈轴向稳定性的研究[J].中国电机工程学报,2004,24(2):167-171. Wang Shishan,Ji Shengchang,Li Yanming.Study on axial stability in condition of short-circuit for power transformer using XLPE insulated cable windings[J].Proceedings of the CSEE,2004,24(2):167-171(in Chinese).
[9]  王梦云.2002—2003年国家电网公司系统变压器类设备事故统计与分析(一)[J].电力设备,2004,5(10):20-26. Wang Mengyun.Faults statistics and analysis for equipments of transformer’s type in SG system in 2002—2003[J].Electrical Equipment,2004,5(10):20-26(in Chinese).
[10]  王梦云.2004年度110 kV及以上变压器事故统计分析[J].电力设备,2005,6(11):35-41. Wang Mengyun.Statistics and analysis of 110 kV and the above transformer fault in 2004[J].Electrical Equipment,2005,6(11):35-41(in Chinese).
[11]  王梦云.110 kV及以上变压器事故与缺陷统计分析[J].供用电,2007,24(1):1-5. Wang Mengyun.Statistic analysis of transformer’s faults and defects at voltage 110 kV and above[J].Distribution & Utilization,2007,24(1):1-5(in Chinese).
[12]  丁刚.大型变压器在现场吊罩检查的探讨[J].电力建设,1987,8(9):43-50. Ding Gang.Study of onsite examination to dedanking winding from large transformer[J].Electric Power Construction,1987,8(9):43-50(in Chinese).
[13]  电力工业部电力科学研究院.DL/T 596—1996 电力设备预防性试验规程[S].北京市:中国电力出版社,2006. Electric power research institute of ministry of power industry.DL/T 596—1996 Preventive test code for electric power equipment[S].Beijing:China Electric Power Press,2006(in Chinese).
[14]  黄海,潘家强,郑婧.基于切贝雪夫-里兹法的大型电力变压器铁心三维自由振动分析[J].中国电机工程学报,2011,31(36):138-144. Huang Hai,Pan Jiaqiang,Zheng Jing.Three-dimensional vibration analysis for power-transformer core using chebyshebv-ritz method[J].Proceedings of the CSEE,2011,31(36):138-144(in Chinese).
[15]  汲胜昌,李彦明,傅晨钊.负载电流法在基于振动信号分析法监测变压器铁心状况中的应用[J].中国电机工程学报,2003,23(6):154-158. Ji Shengchang,Li Yanming,Fu Chenzhao.Application of on-load current method in monitoring the condition of transformer’s core based on the vibration analysis method[J].Proceedings of the CSEE,2003,23(6):154-158(in Chinese).
[16]  电力行业电力变压器标准化技术委员会.DL/T 1093—2008 电力变压器绕组变形的电抗法检测判断导则[S].北京:中国电力出版社,2008. Power Transformer Standardization Technical Committee in Electric Power Industry.DL/T 1093—2008 Guide for reactance method to detect and diagnose winding deformation of power transformer[S].Beijing:China Electric Power Press,2008(in Chinese).
[17]  Dick E P,Erven C C.Transformer diagnostic testing by frequuency response analysis[J].IEEE Transactions on Power Apparatus and Systems,1978,97(6):2144-2153.
[18]  刘勇,梁笑尘,汲胜昌,等.变压器套管容性故障对频响曲线的影响[J].西安交通大学学报,2014,48(2):62-68. Liu Yong,Liang Xiaochen,Ji Shengchang,et al.Influence of transformer bushing capacitive fault on frequency response curves[J].Journal of Xi’an Jiaotong University,2014,48(2):62-68(in Chinese).
[19]  黄华,周建国,姜益民,等.阻抗法和频响法诊断电力变压器绕组变形[J].高电压技术,1999,25(2):70-73. Huang Hua,Zhou Jianguo,Jiang Yimin,et al.Diagnosis of winding deformation of transformer by impedance method and FRA[J].High Voltage Engineering,1999,25(2):70-73(in Chinese).
[20]  王景林,李锐海.接地线对变压器绕组变形试验的影响[J].云南电力技术,2007,35(1):1-2. Wang Jinglin,Li Ruihai.Influence of ground lead on experiment of transformer winding deformation[J].Yunnan Electric Power,2007,35(1):1-2(in Chinese).
[21]  Islam S M.Detection of shorted turns and winding movements in large power transformers using frequency response analysis[C]//Proceedings of IEEE Conference on Power Engineering Society Winter Meeting,Singapore,2000:2233-2238.
[22]  电力行业高压试验技术标准化技术委员会.DL/T 911—2004 电力变压器绕组变形的频率响应分析法[S].北京:中国电力出版社,2004. High Voltage Test Technology Standardization Technical Committee of Electric Power Industry.DL/T 911—2004 Frequency response analysis on winding deformation of power transformers[S].Beijing:China Electric Power Press,2004(in Chinese).
[23]  Ryder S.A.Diagnosing transformer faults using frequency response analysis[J].Electrical Insulation Magazine,IEEE,2003,19(2):16-22.
[24]  何此昂,周渡海.变压器与电感器设计方法及应用实例[M].北京市:人民邮电出版社,2011:50-52. He Ciang,Zhou Duhai.Design method and application example of transformer and inductor[M].Beijing:Posts and Telecom Press,2011:50-52(in Chinese).

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133