特高压大型充油设备电弧燃爆过程压力传播特性研究

大型充油设备油箱内部区域发生局部高压放电时, 会使放电区域变压器油瞬间气化并产生爆炸压力波。为了研究上述过程中压力波在变压器油箱内部以及升高座区域的传播特性, 依据实际实验情况建立三维几何模型, 并划分多面体网格, 采用FLUENT软件进行数值模拟。计算过程中通过Profile文件在放电区域加载实际放电能量曲线, 并且通过气液两相流模型考虑气体和液体的可压缩性对其进行计算求解。结果表明：电弧能量4.929 MJ、持续时间58.6 ms情况下, 计算得到升高座顶部监测点压力峰值为1.21 MPa, 油箱左侧顶部位置监测点压力峰值4.62 MPa, 油箱右侧顶部位置监测点压力峰值3.79 MPa; 升高座区域内达到的压力峰值随着距离故障点位置的增加而不断减小。将仿真得到的不同监测点位置压力峰值以及压力变化趋势与实验结果进行对比, 二者具有较好的一致性, 验证了仿真计算模型的有效性。通过数值模拟手段建立油箱内电弧故障放电仿真模型并求解, 可获得油箱及升高座内各位置的详细压力变化曲线及三维空间内压力波传播规律, 能够极大地减少放电实验所产生的人力和物力损耗, 并为变压器油箱内电弧燃爆事故预防提供有效的理论依据。

Abstract

When the local high voltage discharge occurs in the internal area of a converter transformer oil tank,the transformer oil in the discharge area will be vaporized instantly and explosion pressure wave will be generated.In order to study the propagation characteristics of the pressure wave in the transformer tank and elevated seat area in the above process,a three-dimensional geometric model was established and divided into polyhedral meshes according to the actual experimental situation.For numerical simulation,a fluent software was used.During the calculation,the actual discharge energy curve was loaded in the discharge area through the profile file,and the compressibility of gas and liquid was considered through the gas-liquid two-phase flow model.The results show that when the arc energy is 4.929 MJ and the duration is 58.6 ms,the peak pressures at the monitoring point on the top of the elevated seat,on the left and right top of the oil tank are 1.21 MPa,4.62 MPa and 3.79 MPa,respectively.The pressure peak in the elevated seat area decreases with the increase of the distance from the fault point.The simulated pressure peak and pressure variation trends obtained by simulation at different monitoring points display a satisfied consistence with the experimental results,which verifies the effectiveness of the simulation calculation model.By establishing and solving the arc fault discharge simulation model in the oil tank through numerical simulation,the detailed pressure variation curve and the pressure wave propagation law in the three-dimensional space can be obtained.It can greatly reduce the loss of manpower and material resources caused by the discharge experiment,and provide an effective theoretical basis for the prevention of arc explosion accident in the transformer oil tank.

参考文献

[1] 陈涛,赵力增,傅学成,等.大型换流变压器火灾事故特点与灭火方案[J].消防科学与技术,2020,39(8):1138-1141.

[2] CHEN Tao,ZHAO Li-zeng,FU Xue-cheng,et al.Fire accident characteristics and firefighting solutions of large converter transformer[J].Fire Science and Technology,2020,39(8):1138-1141.(in Chinese)

[3] BEN Landis,RYAN Brady,MARGARETA Petrovan-boiarciuc,et al.Investigation of an internal arcing event in an on load tap changer using fluid structure interaction[C]∥Proceedings of the ASME Pressure Vessels and Piping Conference 2010,v4,Fluid-Structure Interaction:ASME,2010:61-68.

[4] BEN Landis,SEBASTIEN Muller,MARGARETA Petrovan-boiarciuc,et al.Prevention of transformer tank explosion part 4:development of a fluid structure interaction numerical tool[C]∥Proceedings of the ASME Pressure Vessels and Piping Conference 2009,v4,Fluid-Structure Interaction:ASME,2009:45-53.

[5] 陈杨,戴景民,王振涛,等.基于近红外TDLAS变压器油中溶解气体在线检测装置[J].光谱学与光谱分析,2021,41(12):3712-3716.

[6] CHEN Yang,DAI Jing-min,WANG Zhen-tao,et al.A near-infrared TDLAS online detection device for dissolved gas in transformer oil[J].Spectroscopy and Spectral Analysis,2021,41(12):3712-3716.(in Chinese)

[7] 杨廷胜,卢志鹏,苗厚利.基于PMS的设备故障数据分析模型构建及仿真[J].粘接,2022,49(7):165-169,174.

[8] YANG Ting-sheng,LU Zhi-peng,MIAO Hou-li.Construction and simulation of equipment fault data analysis model based on PMS[J].Adhesion,2022,49(7):165-169,174.(in Chinese)

[9] 陈城,闫永昶.变电站变压器异常状态监测数据可视化方法[J].制造业自动化,2022,44(6):204-207.

[10] CHEN Cheng,YAN Yong-xu.Visualization method of transformer abnormal condition monitoring data in substation[J].Manufacturing Automation,2022,44(6):204-207.(in Chinese)

[11] 马鑫,尚毅梓,胡昊,等.基于数据特征增强和残差收缩网络的变压器故障识别方法[J].电力系统自动化,2022,46(3):175-183.

[12] MA Xin,SHANG Yi-zi,HU Hao,et al.Identification method of transformer fault based on data feature enhancement and residual shrinkage network[J].Automation of Electric Power Systems,2022,46(3):175-183.(in Chinese)

[13] 夏红军,徐红艳,俞啸玲,等.内部电弧故障下油浸式变压器热点温升建模分析[J].农村电气化,2019(10):24-27.

[14] XIA Hong-jun,XU Hong-yan,YU Xiao-ling,et al.Modeling and analysis of hot spot temperature rise of oil immersed transformer under internal arc fault[J].Rural Electrification,2019(10):24-27.(in Chinese)

[15] 闫晨光,张保会,郝治国,等.电力变压器油箱内部故障压力特征建模及仿真[J].中国电机工程学报,2014(1):179-185.

[16] YAN Chen-guang,ZHANG Bao-hui,HAO Zhi-guo,et al.Modeling and simulation of pressure characteristics of power transformer tanks′ internal faults[J].Proceedings of the CSEE,2014(1):179-185.(in Chinese)

[17] 闫晨光,郝治国,张保会,等.电力变压器油箱形变破裂建模及仿真[J].电工技术学报,2016,31(3):180-187.

[18] YAN Chen-guang,HAO Zhi-guo,ZHANG Bao-hui,et al.Modeling and simulation of power transformer tank deformation and rupture[J].Transactions of China Electrotechnical Society,2016,31(3):180-187.(in Chinese)

[19] 闫晨光,徐彻,曹培,等.电力变压器瓦斯继电器暂态动作特性研究[J].电工电能新技术,2022,41(5):1-7.

[20] YAN Chen-guang,XU Che,CAO Pei,et al.Research on transient characteristics of power transformer gas relay[J].Advanced Technology of Electrical Engineering and Energy,2022,41(5):1-7.(in Chinese)

[21] 郑龙现.油浸式变压器事故油池的设计[J].氯碱工业,2022,58(3):41-42.

[22] ZHENG Long-xian.Design of accident oil pool for oil immersed transformer[J].Chlor-Alkali Industry,2022,58(3):41-42.(in Chinese)

[23] 郑秋雨,刘琳,武保林,等.典型电力用油的油气/雾燃爆危险性研究[J].消防科学与技术,2020,39(6):849-851.

[24] ZHENG Qiu-yu,LIU Lin,WU Bao-lin,et al.Study on deflagration risk of typical oil gas/mist in electric power industry[J].Fire Science and Technology,2020,39(6):849-851.(in Chinese)

[25] 赵欣宇,杨黎波,董一夫,等.变压器油蒸气爆炸与泄爆过程数值模拟[J].工业安全与环保,2021,47(8):31-35.

[26] ZHAO Xin-yu,YANG Li-bo,DONG Yi-fu,et al.Numerical simulation of transformer oil vapor explosion and venting process[J].Industrial Safety and Environmental Protection,2021,47(8):31-35.(in Chinese)

[27] 周远翔,姜鑫鑫,陈维江,等.交直流复合电压下变压器油中电弧放电及产气特性[J].高电压技术,2011,37(7):1584-1589.

[28] ZHOU Yuan-xiang,JIANG Xin-xin,CHEN Wei-jiang,et al.Arcing discharge and gas generation characteristics of transformer oil under combined AC and DC voltage[J].High Voltage Engineering,2011,37(7):1584-1589.(in Chinese)

[29] 刘泽洪,卢理成,周远翔,等.变压器升高座区域电弧故障与压力特性研究[J].中国电机工程学报,2021,41(13):4688-4697,29.

[30] LIU Ze-hong,LU Li-cheng,ZHOU Yuan-xiang,et al.Research on pressure characteristics of AC turret on arc fault[J].Proceedings of the CSEE,2021,41(13):4688-4697,29.(in Chinese)

[31] 刘泽洪,余军,郭贤珊,等.±1100 kV特高压直流工程主接线与主回路参数研究[J].电网技术,2018,42(4):1015-1022.

[32] LIU Ze-hong,YU Jun,GUO Xian-shan,et al.Study on main connection line and main circuit parameters of±1100 kV UHVDC[J].Power System Technology,2018,42(4):1015-1022.(in Chinese)

[33] RYAN Brady,SEBASTIEN Muller,MARGARETA Petrovan-boiarciuc,et al.Prevention of transformer tank explosion:part 3:design of efficient protections using numerical simulations[C]∥Proceedings of the ASME Pressure Vessels and Piping Conference 2009,v3,Design and Analysis:ASME,2009:667-675.

[34] SEBASTIEN Muller,RYAN Brady.Prevention of transformer tank explosion PART 1:Experimental tests on large transformers[C]∥ASME Pressure Vessels and Piping Conference 2008,vol 4,Fluid-structure interaction:ASME,2008:357-365.

[35] RYAN Brady,SEBASTIEN Muller.Prevention of transformer tank explosion PART 2:Development and application of a numerical simulation tool[C]∥ASME Pressure Vessels and Piping Conference 2008,vol 4,Fluid-structure interaction:ASME,2008:49-58.

罗传仙, 田洪迅, 黄勤清, 杨旭, 刘正阳, 周文, 储后广, 韩雪峰. 特高压大型充油设备电弧燃爆过程压力传播特性研究[J]. 爆破, 2023, 40(2): 217. LUO Chuan-xian, TIAN Hong-xun, HUANG Qin-qing, YANG Xu, LIU Zheng-yang, ZHOU Wen, CHU Hou-guang, HAN Xue-feng. Research on Pressure Propagation Characteristics of Ultra-high Pressure by Large Oil-filled Equipment during Arc Explosion[J]. BLASTING, 2023, 40(2): 217.

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