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| Energy Transfer Characteristics of GIS Mechanical Vibration Based on Structural Intensity Method |
| Wang Yangcheng1, Guan Xiangyu1, Chen Zhipeng1,2, Lin Jiangang1, Zhao Junyi1 |
1. School of Electrical Engineering and Automation Fuzhou University Fuzhou 350108 China;
2. SDIC Genting Meizhouwan Electric Power Co. Ltd Putian 351153 China |
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Abstract Gas insulated switchgear (GIS) is widely used in power systems due to its advantages of high transmission efficiency, long operating life and small footprint. In addition to the insulation failure, the mechanical failure at the contact is also one of the main reasons for the safe operation of GIS equipment. Therefore, timely detection of internal mechanical defects can effectively reduce the occurrence of accidents. Vibration detection is one of the important methods to find GIS mechanical defects. Some scholars have carried out mathematical modeling and mechanism analysis of GIS vibration, but have not paid attention to the essence of vibration transmission during GIS operation. The traditional vibration analysis method has limitations when dealing with GIS vibration. Single physical quantities such as stress, velocity and acceleration can characterize the vibration transmission status to a certain extent, but they cannot describe the energy transmitted by each vibration path well. Therefore, new vibration evaluation indexes need to be adopted. In this paper, the mechanical power flow method is used to study the vibration transmission characteristics of GIS under different contact states, and the internal relationship between the contact state and the shell vibration characteristics is studied, so as to provide a basis for the mechanical vibration detection of GIS under electrical contact states.
Firstly, the vibration calculation model of GIS under power frequency current excitation is established by using the all-transient electromagnetic-structure multi-field coupling method, and the vibration of the shell under different contact state and different current is obtained. Secondly, the GIS test platform is set up and the flow experiment is carried out to verify the validity of the numerical calculation model. Thirdly, the GIS power flow model is used to extract the stress tensor and velocity results of the micro elements, and then the formula is used to solve the spatial component of the vibration energy flow, and the visualization of the vibration energy flow is realized by the method of vector and streamline synthesis. Finally, the power flow model is used to analyze the process of GIS vibration transmission under different contact states, and the difference of GIS power flow under normal and defective states is studied.
The results show that the 100 Hz and 200 Hz components of the total input power flow are 6.64×10-6 W and 4.81×10-6 W respectively when the contact is normal, and the 100 Hz and 200 Hz components of the total input power flow are 6.35×10-6 W and 4.55×10-6 W respectively when the contact is defective. The total input power of the system in the normal state is greater than that in the defect state, so the fundamental frequency amplitude of the shell vibration signal in the normal state is greater than that in the contact defect state.
When the contact defect occurs in GIS contacts, the change of the current path of the contact leads to the distortion of the surrounding magnetic field, and the vibration state of other components changes compared with the normal contact state. In the contact defect state, the power transmitted to the air through sound is greater than that in the normal contact state, so the GIS defects in actual operation will generate more noise. The power flow transmitted by the contact when contacting the defect is obviously different from that in normal condition, so the power flow can be used as an important basis for judging the state of the contact. In the following work, we will carry out power flow analysis on the field multi-cavity GIS equipment to further improve the power flow model.
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Received: 03 June 2023
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[1] 刘鹏, 吴泽华, 朱思佳, 等. 缺陷对交流1100kV GIL三支柱绝缘子电场分布影响的仿真[J]. 电工技术学报, 2022, 37(2): 469-478.
Liu Peng, Wu Zehua, Zhu Sijia, et al.Simulation on electric field distribution of 1100kV AC tri-post insulator influenced by defects[J]. Transactions of China Electrotechnical Society, 2022, 37(2): 469-478.
[2] 王艳新, 闫静, 王建华, 等. 基于域对抗迁移卷积神经网络的小样本GIS绝缘缺陷智能诊断方法[J]. 电工技术学报, 2022, 37(9): 2150-2160.
Wang Yanxin, Yan Jing, Wang Jianhua, et al.Intelligent diagnosis for GIS with small samples using a novel adversarial transfer learning in convolutional neural network[J]. Transactions of China Electrotechnical Society, 2022, 37(9): 2150-2160.
[3] 杜伯学, 姚航, 梁虎成, 等. 时变温差工况下直流GIL/GIS盆式绝缘子动态电场畸变抑制[J]. 电工技术学报, 2024, 39(9): 2851-2859.
Du Boxue, Yao Hang, Liang Hucheng, et al.Electric field relaxation of basin spacer under variable temperature gradient in DC-GIL/GIS[J]. Transactions of China Electrotechnical Society, 2024, 39(9): 2851-2859
[4] 杜伯学, 董佳楠, 梁虎成. 特高压GIL非均匀热气流特性与三支柱绝缘子绝缘裕度分析[J]. 电工技术学报, 2023, 38(6): 1678-1686.
Du Boxue, Dong Jianan, Liang Hucheng.Non-uniform gas convection in UHV-GIL and insulation margin analysis for tri-post insulator[J]. Transactions of China Electrotechnical Society, 2023, 38(6): 1678-1686.
[5] 刘江, 关向雨, 温跃泉, 等. 基于改进YOLOv4的GIS红外特征识别与温度提取方法[J]. 电力工程技术, 2023, 42(1): 162-168.
Liu Jiang, Guan Xiangyu, Wen Yuequan, et al.Infrared feature recognition and temperature extraction method of GIS components based on improved YOLOv4[J]. Electric Power Engineering Technology, 2023, 42(1): 162-168.
[6] 豆龙江, 何玉灵, 万书亭, 等. 基于振动信号的高压断路器弹簧疲劳程度检测方法[J]. 电工技术学报, 2022, 37(24): 6420-6430.
Dou Longjiang, He Yuling, Wan Shuting, et al.Detecting method of high voltage circuit breaker spring fatigue based on vibration signal[J]. Transactions of China Electrotechnical Society, 2022, 37(24): 6420-6430.
[7] 徐志钮, 郭一帆, 李先锋, 等. 机械缺陷对GIS外壳振动影响[J]. 电力工程技术, 2022, 41(5): 156-164, 185.
Xu Zhiniu, Guo Yifan, Li Xianfeng, et al.Influence of mechanical faults on the vibration of GIS shell[J]. Electric Power Engineering Technology, 2022, 41(5): 156-164, 185.
[8] Ohshita Y, Hashimoto A, Kurosawa Y.A diagnostic technique to detect abnormal conditions of contacts measuring vibrations in metal enclosures of gas insulated switchgear[J]. IEEE Transactions on Power Delivery, 1989, 4(4): 2090-2094.
[9] 郭碧红, 张汉华. 利用GIS外壳典型振动的频率特性检测内部潜伏性故障[J]. 电网技术, 1989, 13(2): 44-50, 72.
Guo Bihong, Zhang Hanhua.Prediction of internal faults of GIS by frequency spectrum of typical vibration on the enclosure[J]. Power System Technology, 1989, 13(2): 44-50, 72.
[10] 钱家骊, 沈力, 刘卫东, 等. GIS的壳体振动现象及其检测[J]. 高压电器, 1990, 26(6): 3-9.
Qian Jiali, Shen Li, Liu Weidong, et al.Vibration phenomena on GIS enclosure due to inner partial discharge and its detection[J]. High Voltage Apparatus, 1990, 26(6): 3-9.
[11] 黄清, 魏旭, 许建刚, 等. 基于振动原理的GIS母线触头松动缺陷诊断技术研究[J]. 高压电器, 2017, 53(11): 99-104, 108.
Huang Qing, Wei Xu, Xu Jiangang, et al.Research of GIS bus loose contact fault diagnosis techniques based on mechanical vibration[J]. High Voltage Apparatus, 2017, 53(11): 99-104, 108.
[12] 刘媛, 杨景刚, 贾勇勇, 等. 基于振动原理的GIS隔离开关触头接触状态检测技术[J]. 高电压技术, 2019, 45(5): 1591-1599.
Liu Yuan, Yang Jinggang, Jia Yongyong, et al.Connection state diagnosis method of GIS disconnector based on mechanical vibration[J]. High Voltage Engineering, 2019, 45(5): 1591-1599.
[13] 冯俊宗, 孙利雄, 陈维维, 等. 不同运行状态下GIS隔离开关的振动特性[J]. 高电压技术, 2021, 47(12): 4314-4322.
Feng Junzong, Sun Lixiong, Chen Weiwei, et al.Vibration characteristics of GIS isolating switch under different operating conditions[J]. High Voltage Engineering, 2021, 47(12): 4314-4322.
[14] 徐国政, 关永刚. GIS和GIL外壳环流及损耗的简化分析和估算[J]. 高电压技术, 2009, 35(2): 247-249.
Xu Guozheng, Guan Yonggang.Simplified analysis and calculation on circulating current and power loss in enclosure of GIS and GIL[J]. High Voltage Engineering, 2009, 35(2): 247-249.
[15] 丁登伟, 何良, 龙伟, 等. GIS设备运行状态下振动机理及检测诊断技术研究[J]. 高压电器, 2019, 55(11): 93-99.
Ding Dengwei, He Liang, Long Wei, et al.Analysis on vibration mechanisms and detection diagnosis technology of GIS in operating condition[J]. High Voltage Apparatus, 2019, 55(11): 93-99.
[16] 张书琴, 张克选, 岳宝强, 等. GIS的异响振动及其时变力分析[J]. 高压电器, 2020, 56(10): 155-160, 167.
Zhang Shuqin, Zhang Kexuan, Yue Baoqiang, et al.Analysis on abnormal vibration and its time-varying force of GIS[J]. High Voltage Apparatus, 2020, 56(10): 155-160, 167.
[17] 王益民. 某126 kV GIS运行中产生振动异响的分析和解决方案[J]. 高压电器, 2023, 59(7): 200-206.
Wang Yimin.Analysis and solution of abnormal vibration and noise during operation of certain 126 kV GIS[J]. High Voltage Apparatus, 2023, 59(7): 200-206.
[18] 李凯, 许洪华, 陈冰冰, 等. GIS振动机理及固有频率研究[J]. 电测与仪表, 2017, 54(3): 14-18.
Li Kai, Xu Honghua, Chen Bingbing, et al.Research on vibration mechanism and natural frequency in GIS[J]. Electrical Measurement & Instrumentation, 2017, 54(3): 14-18.
[19] 张煌. 500kV GIL多物理耦合场仿真及特性研究[D]. 广州: 华南理工大学, 2019.
Zhang Huang.The study on multi-physical coupling field simulation and characteristics of 500kV GIL[D]. Guangzhou: South China University of Technology, 2019.
[20] 王昕宇. 基于振动信号的GIS电接触故障特性的研究[D]. 沈阳: 沈阳工业大学, 2021.
Wang Xinyu.Study of electrical contact fault characteristics of GIS based on vibration signals[D]. Shenyang: Shenyang University of Technology, 2021.
[21] 李秀广, 吴旭涛, 朱洪波, 等. 基于振动信号的GIS触头接触异常研究分析[J]. 高压电器, 2016, 52(10): 165-169, 175.
Li Xiuguang, Wu Xutao, Zhu Hongbo, et al.Research on contacting fault of GIS contact based on vibration signal[J]. High Voltage Apparatus, 2016, 52(10): 165-169, 175.
[22] Noiseux D U.Measurement of power flow in uniform beams and plates[J]. The Journal of the Acoustical Society of America, 1970, 47(1B): 238-247.
[23] Pavić G.Measurement of structure borne wave intensity, part I: formulation of the methods[J]. Journal of Sound and Vibration, 1976, 49(2): 221-230.
[24] Verheij J W.Cross spectral density methods for measuring structure borne power flow on beams and pipes[J]. Journal of Sound and Vibration, 1980, 70(1): 133-138.
[25] 严济宽. 振动功率流的一般表达式及其测量方法[J]. 噪声与振动控制, 1987, 7(1): 24-29.
[26] 叶海林. 基于功率流的典型基座全频段振动传递特性研究[D]. 武汉: 华中科技大学, 2015.
Ye Hailin.Research on the full-band vibration transmission characteristic of typical foundation based on power flow[D]. Wuhan: Huazhong University of Science and Technology, 2015.
[27] 乔志. 基于有限元功率流的基座振动传递特性研究[D]. 武汉: 华中科技大学, 2013.
Qiao Zhi.Research the vibration transmission characteristic of foundation based on FEM power flow [D]. Wuhan: Huazhong University of Science and Technology, 2013.
[28] 崔征. 卫星平台舱体振动能量流传递规律及实验研究[D]. 上海: 东华大学, 2022.
Cui Zheng.The law of vibration energy flow transfer in the cabin of satellite platform and experimental research[D]. Shanghai: Donghua University, 2022.
[29] 丁屹林, 郝建, 钟尧, 等. 超高压GIL设备振动模态及振动特性分析研究[J]. 电网技术, 2023, 47(7): 2810-2820.
Ding Yilin, Hao Jian, Zhong Yao, et al.Vibration modes and characteristics of EHV GIL equipment[J]. Power System Technology, 2023, 47(7): 2810-2820.
[30] 钟尧, 郝建, 丁屹林, 等. GIS设备典型机械缺陷的非线性振动行为表征参量分析和诊断模型研究[J]. 中国电机工程学报, 2022, 42(19): 7248-7260.
Zhong Yao, Hao Jian, Ding Yilin, et al.Nonlinear vibration behavior characterization parameter analysis and diagnosis model of typical mechanical defects of GIS equipment[J]. Proceedings of the CSEE, 2022, 42(19): 7248-7260. |
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2024, Vol. 39 
