基于三相三绕组等效网络的变压器绕组扫频阻抗特性研究

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Abstract The sweep frequency impedance (SFI) method is widely used in the field of transformer winding deformation detection. At present, most simulation studies on SFI are based on the simplified model of winding, which induces that the changes of SFI curves are hard to be evaluated when faults occur on other windings. Based on a three-phase three-winding transformer, this paper builds its intact three-phase three-winding equivalent resistance-inductance-capacitance (RLC) parameter model and the simplified single-phase three-winding one. By analyzing the high-to-medium SFI curves of the two models, it is found that the simplified single-phase model contains incomplete information about the mechanical condition of the windings. Finally, based on the intact three-phase three-winding RLC parameter model, the variation trends of SCI curves when short-circuit faults occur on different windings are studied and the correlation coefficients are also calculated, so as to assess the influence of the faults of different windings on SFI curves.

Key words： sweep frequency impedance (SFI) method resistance-inductance-capacitance (RLC) parameter model short-circuit fault correlation coefficient

Received: 15 June 2022

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	Articles by authors
	XING Ya
	HOU Feng
	MAO Yanrong
	YAN Jingdong
	REN Fuqiang

Cite this article:

XING Ya,HOU Feng,MAO Yanrong等. Sweep frequency impedance analysis of transformer winding based on three-phase three-winding equivalent network[J]. Electrical Engineering, 2023, 24(1): 10-16.

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http://dqjs.cesmedia.cn/EN/Y2023/V24/I1/10

[1] 刘耀云. 一起110kV变压器保护异常跳闸事件的原因分析及防范措施[J]. 电气技术, 2022, 23(4): 92-95.
[2] 李典阳, 张育杰, 冯健, 等. 变压器故障样本多维诊断及结果可信度分析[J]. 电工技术学报, 2022, 37(3): 667-675.
[3] 孙翔, 何文林, 邱炜, 等. 基于扫频阻抗法的变压器匝间短路故障检测[J]. 高压电器, 2016, 52(3): 29-33.
[4] 陈杰, 兰生, 林野, 等. 基于Matlab的变压器绕组变形频率响应的仿真研究[J]. 电气技术, 2022, 23(3): 23-30.
[5] 刘云鹏, 李欢, 田源, 等. 基于分布式光纤传感的绕组变形程度检测[J]. 电工技术学报, 2021, 36(7): 1347-1355.
[6] 刘有为, 李忠晶, 鞠登峰, 等. 扫频短路阻抗法诊断变压器绕组变形的研究[C]//2009年度电力行业高压测试及电气测量技术研讨会, 北京, 2009: 28-34.
[7] 刘勇. 变压器扫频阻抗特性及其在绕组变形检测中的应用[D]. 西安: 西安交通大学, 2017.
[8] LIU Yong, JI Shengchang, YANG Fan, et al.A study of the sweep frequency impedance method and its application in the detection of internal winding short circuit faults in power transformers[J]. IEEE Transa- ctions on Dielectrics and Electrical Insulation, 2015, 22(4): 2046-2056.
[9] 刘勇, 杨帆, 张凡, 等. 检测电力变压器绕组变形的扫频阻抗法研究[J]. 中国电机工程学报, 2015, 35(17): 4505-4516.
[10] ZHAO Xiaozhen, YAO Chenguo, ZHANG Cheng, et al.Toward reliable interpretation of power transformer sweep frequency impedance signatures: experimental analysis[J]. IEEE Electrical Insulation Magazine, 2018, 34(2): 40-51.
[11] ABEYWICKRAMA N, SERDYUK Y V, GUBANSKI S M.High-frequency modeling of power transformers for use in frequency response analysis (FRA)[J]. IEEE Transactions on Power Delivery, 2008, 23(4): 2042-2049.
[12] PODOLTSEV A D, ABEYWICKRAMA K G N B, SERDYUK Y V, et al. Multiscale computations of parameters of power transformer windings at high frequencies. Part I: small-scale level[J]. IEEE Transa- ctions on Magnetics, 2007, 43(11): 3991-3998.
[13] PODOLTSEV A D, ABEYWICKRAMA K G N B, SERDYUK Y V, et al. Multiscale computations of parameters of power transformer windings at high frequencies. Part II: large-scale level[J]. IEEE Transa- ctions on Magnetics, 2007, 43(12): 4076-4082.
[14] ZHANG Z W, TANG W H, JI T Y, et al.Finite-element modeling for analysis of radial deformations within transformer windings[J]. IEEE Transactions on Power Delivery, 2014, 29(5): 2297-2305.
[15] ABU-SIADA A, HASHEMNIA N, ISLAM S, et al.Understanding power transformer frequency response analysis signatures[J]. IEEE Electrical Insulation Magazine, 2013, 29(3): 48-56.
[16] MUKHERJEE P, SATISH L.Construction of equivalent circuit of a single and isolated transformer winding from FRA data using the ABC algorithm[J]. IEEE Transactions on Power Delivery, 2012, 27(2): 963-970.
[17] SHAH K, RAGAVAN K.Estimation of transformer winding capacitances through frequency response analysis-an experimental investigation[J]. International Journal of Emerging Electric Power Systems, 2013, 14(6): 549-559.
[18] MUKHERJEE P, SATISH L.Generalized analytical expression for natural frequencies of a single isolated air-core inhomogeneous transformer winding[J]. IEEE Transactions on Power Delivery, 2017, 32(5): 2313-2319.
[19] SANT ANA W C, SALOMON C P, LAMBERT- TORRES G, et al. A survey on statistical indexes applied on frequency response analysis of electric machinery and a trend based approach for more reliable results[J]. Electric Power Systems Research, 2016, 137: 26-33.