| GIS壳体振动机理和局部放电优化诊断与应用 |
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| 引用本文： | 张利,屈斌,王永宁,陈荣,刘宝稳,张少杰,韩斌,马宏忠.GIS壳体振动机理和局部放电优化诊断与应用[J].中国电力,2022,55(3):80-86. |
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| 作者姓名： | 张利 屈斌 王永宁 陈荣 刘宝稳 张少杰 韩斌 马宏忠 |
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| 作者单位： | 1. 国网天津市电力公司电力科学研究院，天津 300384;2. 国网天津市电力公司检修公司，天津 300230;3. 河海大学 能源与电气学院，江苏 南京 211100;4. 国网天津市电力公司城东供电分公司，天津 300250 |
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| 基金项目： | 国网天津市电力公司科技项目（KJ19-1-19）。 |
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| 摘 要： | 为探究气体绝缘组合电器(GIS)电磁感应振动和局部放电(partial discharge, PD)引发电力设备异常振动的机理，建立计及集肤效应的GIS感应涡流及其电磁力的分布模型，设置GIS金属尖端PD发展实验。同步测取GIS局部放电发生时的脉冲电流和GIS壳体振动信号，融合机电信号发掘GIS局部放电的振动特征和机理。研究发现，电磁感应振动与局部放电引发GIS壳体振动存在明显差异，其中局部放电引发GIS壳体振动频率与脉冲间隔频率分布一致且能量集中分布在该频段的50Hz倍频处。最后，构建粒子群算法(PSO)优化的支持向量机(SVM)模型实现不同放电程度的模式识别，并进行实际应用。
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| 关 键 词： | GIS 感应电流 局部放电 振动 |
| 收稿时间： | 2021-08-05 |
| 修稿时间： | 2022-02-20 |
GIS Shell Vibration Mechanism and Partial Discharge Optimization Diagnosis |
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| ZHANG Li,QU Bin,WANG Yongning,CHEN Rong,LIU Baowen,ZHANG Shaojie,HAN Bin,MA Hongzhong.GIS Shell Vibration Mechanism and Partial Discharge Optimization Diagnosis[J].Electric Power,2022,55(3):80-86. |
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| Authors: | ZHANG Li QU Bin WANG Yongning CHEN Rong LIU Baowen ZHANG Shaojie HAN Bin MA Hongzhong |
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| Affiliation: | 1. State Grid Tianjin Electric Power Technology Institute, Tianjin 300384, China;2. State Grid Tianjin Chengdong Electric Power Supply Company, Tianjin 300230, China;3. College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China;4. State Grid Tianjin Electric Power Overhaul Company, Tianjin 300250, China |
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| Abstract: | In order to explore the mechanism of abnormal vibration of power equipment caused by electromagnetic induced vibration and partial discharge (PD) in GIS, the distribution model of induced eddy current and its electromagnetic force considering skin effect in GIS was established, and the development experiment of PD at metal tip of GIS was set up. The pulse current and the vibration signal of GIS shell are measured simultaneously when GIS PD occurs, and the vibration characteristics and mechanism of GIS PD are explored by integrating the electromechanical signal. It is found that there are obvious differences between electromagnetic induced vibration and PD induced vibration of GIS shell. The frequency of PD induced vibration of GIS shell is the same as that of pulse interval frequency, and the energy is concentrated at the frequency of 50Hz. Finally, the SVM model optimized by particle swarm optimization (PSO) is constructed to realize the pattern recognition of different discharge levels, and it is applied in practice. |
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| Keywords: | GIS induced current partial discharge vibration |
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