三相共体式GIS母线管的声振特性仿真研究
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摘要
利用GIS的声振特性对其机械状态进行检测的方法受到了广泛的关注,但目前缺少振动产生机理及声辐射特性的研究。为了解决上述问题,文中建立了某型110 kV三相共体式GIS母线管的有限元模型,仿真研究了磁场及洛伦兹力分布,母线及罐体固有频率及该母线管的声振特性。研究结果表明:导体所受电磁力的频率为100 Hz,幅值在其自身电流达到峰值时最大,三相导体的受力在时域上相位相差120°;GIS罐体的振动特性主要表现为平行于地面的横向摆动,并且在该平面内具有较强的辐射声压。文中提出的三相共体式GIS的声振特性的仿真研究模型及方法可用于GIS设备声振特性的进一步研究。
Mechanical condition detection method on GIS through vibro-acoustic characteristics has received much attention. However,there is no research on its vibration mechanism and acoustic radiation. To solve these problems,this paper establishes a finite element model of busbar tube in 110 kV three-phase common-box GIS. The distribution of magnetic field and the electromagnetic force,natural frequency of GIS shell and busbar and its vibro-acoustic characteristics are investigated. The research results show that the frequency of electromagnetic force is 100 Hz with its amplitude being maximum when its current reaches peak value. The electromagnetic force of the three-phase conductors in time domain exists difference in angle with 120°from each other. The vibration characteristics of GIS can be mainly expressed as horizontal swing in the plane parallel to the ground,and there is strong radiation pressure in the plane. The simulation model and method in this paper can provide support for further investigation on vibroacoustic characteristics of the GIS.
Mechanical condition detection method on GIS through vibro-acoustic characteristics has received much attention. However,there is no research on its vibration mechanism and acoustic radiation. To solve these problems,this paper establishes a finite element model of busbar tube in 110 kV three-phase common-box GIS. The distribution of magnetic field and the electromagnetic force,natural frequency of GIS shell and busbar and its vibro-acoustic characteristics are investigated. The research results show that the frequency of electromagnetic force is 100 Hz with its amplitude being maximum when its current reaches peak value. The electromagnetic force of the three-phase conductors in time domain exists difference in angle with 120°from each other. The vibration characteristics of GIS can be mainly expressed as horizontal swing in the plane parallel to the ground,and there is strong radiation pressure in the plane. The simulation model and method in this paper can provide support for further investigation on vibroacoustic characteristics of the GIS.
引文
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[10]李凯,许洪华,马宏忠,等.GIS针尖类局部放电引起的振动特性研究[J].陕西电力,2016,44(9):80-84.LI Kai,XU Honghua,MA Hongzhong,et al.Vibration characteristics of needle partial discharge in GIS[J].Shaanxi Electric Power,2016,44(9):80-84.
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[13]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.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.
[14]程林.特高压GIS/HGIS设备振动诊断方法研究[J].电力建设,2009,30(7):17-19.CHENG Lin.Diagnosis of high voltage GIS/HGIS equipment through vibration signal[J].Electric Power Construction,2009,30(7):17-19.
[2]连杰,李钧.363 k V GIS断路器振动引起螺栓松动问题分析[J].西北水电,2013(2):62-64.LIAN Jie,LI Jun.Analysis on bolt looseness by vibration of363 k V GIS circuit braker[J].Northwest Water Power,2013(2):62-64.
[3]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.
[4]汲胜昌,钟理鹏,刘凯,等.SF6放电分解组分分析及其应用的研究现状与发展[J].中国电机工程学报,2015,35(9):2318-2332.JI Shengchang,ZHONG Lipeng,LIU Kai,et al.Research status and development of SF6 decomposition components analysis under discharge and its application[J].Proceedings of the CSEE,2015,35(9):2318-2332.
[5]汲胜昌,王圆圆,李军浩,等.GIS局部放电检测用特高频天线研究现状及发展[J].高压电器,2015,51(4):163-172.JI Shengchang,WANG Yuanyuan,LI Junhao,et al.Review of UHF antenna for detecting partial discharge in GIS[J].High Voltage Apparatus,2015,51(4):163-172.
[6]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.The detection on shell vibration of GIS[J].High Voltage Apparatus,1990,26(6):3-9.
[7]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,1989,14(2):44-50.GUO Bihong,ZHANG Hanhua.Detection on latent failure by the frequency characteristic of typical vibration of GISshell[J].Power System Technology,1989,14(2):44-50.
[8]张雅林,钱家骊.GIS内部局部放电引起壳体振动的试验研究[J].高压电器,1989,25(4):13-16.ZHANG Yalin,QIAN Jiali.Experimental study on the vibration of shell caused by partial discharge in GIS[J].High Voltage Apparatus,1989,25(4):13-16.
[9]刘勇业,马宏忠,姜宁,等.GIS沿面放电缺陷的振动检测法分析[J].广东电力,2017,30(3):71-75.LIU Yongye,MA Hongzhong,JIANG Ning,et al.Analysis on vibration detection method for creeping discharge defect in GIS[J].Guangdong Electric Power,2017,30(3):71-75.
[10]李凯,许洪华,马宏忠,等.GIS针尖类局部放电引起的振动特性研究[J].陕西电力,2016,44(9):80-84.LI Kai,XU Honghua,MA Hongzhong,et al.Vibration characteristics of needle partial discharge in GIS[J].Shaanxi Electric Power,2016,44(9):80-84.
[11]徐天乐,马宏忠,陈楷,等.基于振动信号HHT方法的GIS设备故障诊断[J].中国电力,2013,46(3):39-42.XU Tianle,MA Hongzhong,CHEN Kai,et al.Fault diagnosis of GIS equipment based on vibration signal and HHTmethod[J].Electric Power,2013,46(3):39-42.
[12]侯焰.基于异常振动分析的GIS机械故障诊断技术研究[D].济南:山东大学,2017.HOU Yan.Research on fault diagnosis of machine based on vibration signal of GIS[D].Jinan:Shandong University,2017.
[13]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.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.
[14]程林.特高压GIS/HGIS设备振动诊断方法研究[J].电力建设,2009,30(7):17-19.CHENG Lin.Diagnosis of high voltage GIS/HGIS equipment through vibration signal[J].Electric Power Construction,2009,30(7):17-19.