面向多次短路冲击的变压器绕组电磁-力耦合场计算与多参量振动特性

doi:10.19595/j.cnki.1000-6753.tces.250317

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Abstract In actual working conditions, the transformer winding is exposed to a long-term vibrating environment, particularly when subjected to a short circuit impact, which significantly exacerbates the vibration of the winding and increases the likelihood of transformer mechanical failure. In the context of promoting the dual-carbon strategy and constructing a new power system, the mechanical stability of transformers is imperative for grid safety. This paper proposes a multi-physics model of electromagnetic forces to analyse the deformation and vibration characteristics of the winding under short-circuit impact. The subsequent section considers the change in geometric and material parameters under the cumulative effect of multiple short-circuit impacts. This is achieved by constructing a coupled electromagnetic-force field model of the winding under multiple short-circuit impacts, which is then used to analyse the dynamic vibration law of the winding under multiple short-circuit impacts. Furthermore, multi-characteristic vibration parameters such as the vibration pulse factor (VPF), frequency energy factor (FCF) and spectrum width factor (SWF) are introduced to describe the dynamic evolution of the cumulative damage to the winding. To verify the proposed method, a transformer normal operating condition test platform and a short-circuit impact test platform were set up. A 35 kV transformer prototype was subjected to a multi-gradient short-circuit impact test, and the results were compared and analysed with the simulation model results.
The results demonstrate that under normal operating conditions, the winding spectrum is dominated by 100 Hz, with high-order frequency components that are multiples of 100 Hz, concentrated in the range of 200 Hz to 800 Hz. However, when the winding is subjected to a short-circuit impact, the spectrum is dominated by 50 Hz and 100 Hz, with high-order frequency components that are multiples of 50 Hz, concentrated in the range of 150 Hz to 300 Hz. The high-frequency components attenuate significantly, revealing a strong coupling mechanism between the transient electromagnetic force of the short circuit and the dynamic response of the structure. In the case of multiple impacts, the deformation and vibration of the winding manifest a two-stage characteristic of 'progressive damage-critical instability'. With the increase in the number of impacts, the system vibration mode gradually becomes more complex and unstable, and the incremental plastic deformation prior to instability exhibits a nonlinear decreasing trend, whilst the cumulative deformation continues to increase. At the point of winding instability, the single deformation variable increases significantly. The incorporation of multi-feature parameters, such as the vibration pulse factor, frequency energy factor and spectral width factor, has proven effective in reflecting the dynamic evolution process of winding vibration. In the context of multiple short circuit impacts, the frequency components of 50 Hz and 100 Hz invariably dominate the vibration response, gradually stabilising to account for approximately 72% of the total. The vibration signal exhibits an incremental increase in spectral width, reaching a pronounced peak when the winding becomes unstable, concomitant with the emergence of additional multiple frequency components. It has been demonstrated that the vibration impulse factor increases with the number of short circuits, and decreases by approximately 14.7% when the winding undergoes large deformation due to instability. A quantitative criterion for the winding state under short circuit impact is provided by the collaborative analysis of multiple characteristic parameters.

Key words： Transformer winding vibration characteristics short circuit impact multi-characteristic vibration parameters mechanical condition discrimination

Received: 27 February 2025

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TM41

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	Yang Fan
	Liu Zhi
	Jiang Jinyang
	Tan Guanghui

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Yang Fan,Liu Zhi,Jiang Jinyang等. Electromagnetic-Mechanical Coupled Field Calculation and Multi-Parameter Vibration Characteristics of Transformer Windings under Multiple Short-Circuit Impacts[J]. Transactions of China Electrotechnical Society, 2026, 41(5): 1753-1767.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.250317 OR https://dgjsxb.ces-transaction.com/EN/Y2026/V41/I5/1753

[1] 周利军, 员秀程, 王东阳, 等. 基于电压阻尼振荡的变压器故障绕组识别方法[J]. 电工技术学报, 2024, 39(10): 3218-3231.
Zhou Lijun, Yun Xiucheng, Wang Dongyang, et al.Transformer fault winding identification method based on voltage damped oscillation[J]. Transactions of China Electrotechnical Society, 2024, 39(10): 3218-3231.
[2] 国家电网公司. 变压器抗短路校核工作总结[R]. 北京: 中国电力科学研究院, 2012.
[3] 欧强, 罗隆福, 李勇, 等. 一种电力变压器短路累积机械损伤评价方法[J]. 电工技术学报, 2024, 39(8): 2578-2590.
Ou Qiang, Luo Longfu, Li Yong, et al.An evaluation method for short-circuit cumulative mechanical damage of power transformer[J]. Transactions of China Electrotechnical Society, 2024, 39(8): 2578-2590.
[4] 李鹏, 隋华泽, 张书琦, 等. 基于结构模态试验的变压器绕组饼间阻尼研究[J]. 中国电机工程学报, 2025, 45(14): 5679-5690.
Li Peng, Sui Huaze, Zhang Shuqi, et al.Study on inter-disk damping of transformer coils based on structural modal testing[J]. Proceedings of the CSEE, 2025, 45(14): 5679-5690.
[5] 曹辰, 王嘉麟, 李晓龙, 等. 基于电流-频域-振动参量的变压器绕组机械状态诊断方法[J]. 电机与控制学报, 2024, 28(12): 62-72.
Cao Chen, Wang Jialin, Li Xiaolong, et al.Diagnosis method of transformer winding mechanical state based on current-frequency-vibration parameter[J]. Electric Machines and Control, 2024, 28(12): 62-72.
[6] 中国电力科学研究院有限公司. 国家电网有限公司变压器类设备专业工作总结[R]. 北京: 国家电网有限公司. 2022.
[7] 王栋, 詹振宇, 王伟, 等. 换流变压器振动噪声问题研究综述[J]. 电工电能新技术, 2022, 41(11): 28-42.
Wang Dong, Zhan Zhenyu, Wang Wei, et al.Review on vibration and noise of converter transformer[J]. Advanced Technology of Electrical Engineering and Energy, 2022, 41(11): 28-42.
[8] 党永亮, 张玉焜, 祝令瑜, 等. 基于麦克斯韦力-振动耦合的高压油浸式并联电抗器铁心多倍频振动机理研究[J]. 电工技术学报, 2024, 39(增刊1): 117-126.
Dang Yongliang, Zhang Yukun, Zhu Lingyu, et al.Study on multi-harmonic vibration mechanism of high-voltage shunt reactor core based on coupling between Maxwell force and vibration[J]. Transactions of China Electrotechnical Society, 2024, 39(S1): 117-126.
[9] 王丰华, 段若晨, 耿超, 等. 基于“磁-机械”耦合场理论的电力变压器绕组振动特性研究[J]. 中国电机工程学报, 2016, 36(9): 2555-2562.
Wang Fenghua, Duan Ruochen, Geng Chao, et al.Research of vibration characteristics of power transformer winding based on magnetic-mechanical coupling field theory[J]. Proceedings of the CSEE, 2016, 36(9): 2555-2562.
[10] 张凡, 汲胜昌, 祝令瑜, 等. 短路冲击下变压器振动频响函数研究[J]. 西安交通大学学报, 2017, 51(2): 97-103, 154.
Zhang Fan, Ji Shengchang, Zhu Lingyu, et al.Frequency response function of short circuit vibration for power transformer[J]. Journal of Xi'an Jiaotong University, 2017, 51(2): 97-103, 154.
[11] 聂鸿宇, 欧强, 刘睿, 等. 电力变压器低压侧短路特点分析与可靠性提升策略[J]. 变压器, 2021, 58(5): 10-13, 27.
Nie Hongyu, Ou Qiang, Liu Rui, et al.Characteristic analysis and reliability improvement of short-circuit on low voltage side of power transformer[J]. Transformer, 2021, 58(5): 10-13, 27.
[12] 汲胜昌, 张凡, 钱国超, 等. 稳态条件下变压器绕组轴向振动特性及其影响因素[J]. 高电压技术, 2016, 42(10): 3178-3187.
Ji Shengchang, Zhang Fan, Qian Guochao, et al.Characteristics and influence factors of winding axial vibration of power transformer in steady-state operation condition[J]. High Voltage Engineering, 2016, 42(10): 3178-3187.
[13] 张凡, 汲胜昌, 师愉航, 等. 电力变压器绕组振动及传播特性研究[J]. 中国电机工程学报, 2018, 38(9): 2790-2798, 2849.
Zhang Fan, Ji Shengchang, Shi Yuhang, et al.Research on transformer winding vibration and propagation characteristics[J]. Proceedings of the CSEE, 2018, 38(9): 2790-2798, 2849.
[14] 师愉航, 汲胜昌, 张凡, 等. 变压器绕组多倍频振动机理及特性[J]. 高电压技术, 2021, 47(7): 2536-2544.
Shi Yuhang, Ji Shengchang, Zhang Fan, et al.Multi-frequency vibration mechanism and characteristics of transformer windings[J]. High Voltage Engineering, 2021, 47(7): 2536-2544.
[15] 吴晓文, 张壮壮, 祝令瑜, 等. 负载因素对10 kV三相油浸式配电变压器振动特性影响的仿真研究[J]. 高压电器, 2022, 58(10): 106-115.
Wu Xiaowen, Zhang Zhuangzhuang, Zhu Lingyu, et al.Simulation research on influence of load factors on vibration characteristics of 10 kV three phase oil immersed distribution transformer[J]. High Voltage Apparatus, 2022, 58(10): 106-115.
[16] Pan Chao, Wang Chengjian, Liu Ziming, et al.Winding vibration analysis of unbalanced transformer based on electromagnetic-mechanical coupling[J]. International Journal of Electrical Power & Energy Systems, 2022, 134: 107459.
[17] Witczak P, Swiatkowski M.Transmission of vibrations from windings to tank in high power transformers[J]. Energies, 2023, 16(6): 2886.
[18] Ahmad A, Javed I, Nazar W, et al.Short circuit stress analysis using FEM in power transformer on H-V winding displaced vertically & horizontally[J]. Alexandria Engineering Journal, 2018, 57(1): 147-157.
[19] Cornelius R G, Lenhard B L, Medeiros L H, et al.Electromagnetic-structural finite element analysis of copper and aluminum windings in power transformers under short-circuit conditions[J]. Energies, 2024, 17(16): 3994.
[20] 刘家骥. 油浸式变压器漏磁场及绕组短路振动分析[J]. 变压器, 2023, 60(8): 13-18.
Liu Jiaji.Analysis of leakage magnetic field and windings vibration of oil-immersed transformers[J]. Transformer, 2023, 60(8): 13-18.
[21] Li Zhongxiang, Tan Yanghong, Li Yong, et al.Radial stability evaluation and cumulative test of transformer windings under short-circuit condition[J]. Electric Power Systems Research, 2023, 217: 109112.
[22] 张子康, 耿江海, 汪鑫宇, 等. 基于绕组短路冲击响应时频特性的多特征联合形变判定方法[J]. 电工技术学报, 2024, 39(20): 6564-6576, 6590.
Zhang Zikang, Geng Jianghai, Wang Xinyu, et al.Multi-feature joint deformation determination method based on time-frequency characteristics of winding short-circuit impulse response[J]. Transactions of China Electrotechnical Society, 2024, 39(20): 6564-6576, 6590.
[23] García B, Burgos J C, Alonso A.Transformer tank vibration modeling as a method of detecting winding deformations: part I: theoretical foundation[J]. IEEE Transactions on Power Delivery, 2006, 21(1): 157-163.
[24] Hu Jingzhu, Liu Dichen, Liao Qingfen, et al.Electromagnetic vibration noise analysis of transformer windings and core[J]. IET Electric Power Applications, 2016, 10(4): 251-257.
[25] 刘力卿, 马小光, 李雪, 等. 变压器绕组轴向振动模型及固有振动特性影响因素研究[J]. 高压电器, 2023, 59(4): 149-155.
Liu Liqing, Ma Xiaoguang, Li Xue, et al.Study on axial vibration model and influence factors of inherent vibration characteristics of transformer winding[J]. High Voltage Apparatus, 2023, 59(4): 149-155.
[26] 张凡, 吴书煜, 徐征宇, 等. 变压器绕组非线性动力学模型及多次短路冲击下的振动特征[J]. 高电压技术, 2022, 48(12): 4882-4892.
Zhang Fan, Wu Shuyu, Xu Zhengyu, et al.Nonlinear vibration model of transformer windings and their vibration characteristics during multiple short circuits[J]. High Voltage Engineering, 2022, 48(12): 4882-4892.
[27] 刘君, 陈沛龙, 吕黔苏, 等. 考虑累积效应的电力变压器绕组弹塑性形变分析[J]. 电力科学与技术学报, 2024, 39(4): 255-262.
Liu Jun, Chen Peilong, Lü Qiansu, et al.Elastic-plastic deformation analysis of power transformer windings considering cumulative effect[J]. Journal of Electric Power Science and Technology, 2024, 39(4): 255-262.
[28] 律方成, 汪鑫宇, 王平, 等. 基于振动偏离及加权熵的多次短路冲击下变压器绕组机械形变辨识[J]. 电工技术学报, 2023, 38(11): 3022-3032.
Lü Fangcheng, Wang Xinyu, Wang Ping, et al.Mechanical deformation identification of transformer winding under multiple short-circuit impacts based on vibration deviation and weighted entropy[J]. Transactions of China Electrotechnical Society, 2023, 38(11): 3022-3032.