基于传递函数和小波变换的变压器故障诊断研究

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Abstract The safe operation of power transformers plays an important role in the safety of electrical power system. How to effectively diagnose the transformer fault is an important problem to ensure the safe operation of the transformer. In this paper, the increase of stray capacitance and fault resistance leads to the increase of transformer operation noise, as a result, The energy spectrum signal of the sweep signal of the transformer is analyzed by wavelet transform to explore the relationship between the fault severity, fault location and the energy of the high frequency signal. The study shows that the severity of the transformer fault is positively related to the energy of the high frequency component of the sweep signal, but there is no obvious correlation between the fault location of the transformer and the energy of the high frequency component.

Key words： transfer function wavelet transform energy spectrum frequency sweeping method

Published: 22 January 2018

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	Articles by authors
	Chen Zilong
	Ji Zhuoting
	Zheng Zhong
	Dong Pengxin

Cite this article:

Chen Zilong,Ji Zhuoting,Zheng Zhong等. Transformer Diagnosis based on Wavelet Transform and Transfer Function[J]. Electrical Engineering, 2017, 18(12): 30-37.

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http://dqjs.cesmedia.cn/EN/Y2017/V18/I12/30

[1] 胡忠平, 廖福旺, 兰生. 变压器绕组辐向稳定性研究[J]. 电气技术, 2017, 18(4): 32-38.
[2] 李林锐, 郑浩, 刘厚康, 等. 变压器振动监测系统检测装置的设计与实现[J]. 电气技术, 2015, 16(12): 6-9, 51.
[3] 刘效真, 高占岭, 李秀国, 等. 一起变压器绕组变形故障的分析与判断[J]. 电气技术, 2015, 16(8): 92-94.
[4] 张秀斌, 吕景顺, 温定筠, 等. 基于频率响应法的110kV主变压器绕组变形案例分析[J]. 电气技术, 2015, 16(4): 97-100.
[5] 齐宇婷, 杨学昌, 周文俊. 基于传递函数的电力变压器绝缘故障加信诊断方法[J]. 电力系统自动化, 2002, 26(1): 27-31.
[6] 武剑利, 舒乃秋, 彭凌烟. 变压器绕组传递函数的拟合原理及绕组变形诊断应用[J]. 电力自动化设备, 2004, 24(6): 88-90.
[7] 闫贻鹏, 邱丛明, 朱伟剑. 基于正交多项式的变压器传递函数的辨识方法[C]//2013年中国电机工程学会年会论文集, 成都, 2013.
[8] 陈凌. 电流源法检测变压器绕组变形[D]. 成都: 西华大学, 2008.
[9] 高勇. 油浸变压器类设备绕组的分数阶模型研究[D]. 北京: 华北电力大学, 2016.
[10] 武剑利. 频响分析法检测变压器绕组变形的理论研究[D]. 武汉: 武汉大学, 2004.
[11] 张喜乐, 梁贵书, 董华英, 等. 变压器绕组的特快速暂态建模[J]. 电工技术学报, 2007, 22(3): 55-59, 78.
[12] 王丰华, 李清, 金之俭. 振动法在线监测突发短路时变压器绕组状态[J]. 控制工程, 2011, 18(4): 596-599.
[13] 陈梁远, 黎大健, 赵坚, 等. 基于振动模型的变压器绕组变形特性研究[J]. 广西电力, 2016, 39(4): 22-25.
[14] 盛连军, 金胤豪, 曹斌, 等. 变压器振动法在线监测技术[J]. 上海电力学院学报, 2014, 30(5): 451-455.
[15] 马宏忠, 耿志慧, 陈楷, 等. 基于振动的电力变压器绕组变形故障诊断新方法[J]. 电力系统自动化, 2013, 37(8): 89-95.
[16] 朱光伟, 张彼德. 电力变压器振动监测研究现状与发展方向[J]. 变压器, 2009, 46(2): 23-24.
[17] 郭洁, 黄海, 唐昕, 等. 500kV电力变压器偏磁振动分析[J]. 电网技术, 2012, 36(3): 70-75.
[18] 张彬, 徐建源, 陈江波, 等. 基于电力变压器振动信息的绕组形变诊断方法[J]. 高电压技术, 2015, 41(7): 2341-2349.
[19] 吕妍, 王伟, 李智. 电力变压器绕组变形常用检测方法[J]. 山东电力技术, 2013(5): 46-49, 52.
[20] Aballe A, Bethencourt M, Botana F J, et al. Wavelets transform-based analysis for electrochemicalnoise[Z]. 1999: 266.
[21] Aballe A, Bethencourt M, Botana F J, et al. Using wavelets transform in the analysis of electro chemical noise data[Z]. 1999: 4805.
[22] Mitola J. The software Radio architecture[J]. IEEE Communication Magazine, 1995, 33(5): 26-38.
[23] Ostachowicz W, Kudela P, Malinowski P A. Damage localisation in plate-like structures based on PZT sensors[J]. Mechanical Systems and Signal Processing, 2009, 23(6): 1805-1829.