变压器绕组振动传递特性仿真研究
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摘要
由于缺乏绕组振动在油中的传递模型、传递特性以及相应的仿真研究,根据波动理论,建立了油中振动的传递模型,利用多物理场耦合软件,建立了磁场-结构-流体的耦合分析模型,对一台单相10/0.4kV的双柱式、连续饼式绕组的电力变压器进行了仿真和实验研究。结果表明:油箱中的压力波动来自于高低压绕组振动产生压力波的线性叠加,高压绕组和高低压绕组引起的箱体表面油压分别位于-0.2~0.39Pa之间和-0.15~0.39Pa之间;低压绕组在油中传递时容易受到外侧绕组的阻碍,因此油箱表面受高压绕组振动影响较大;油箱表面振动取决于绕组振动的辐射压力场与油箱本体振动特性,加速度最大值为1.1mm/s~2,集中在与高压绕组距离最近的区域,因此选择测点时应当尽量选择油箱表面离绕组较近的平板区域,以获得较大的振动响应。
For lacks of propagation model,propagation property and corresponding simulation of winding vibration in oil,this paper establishes and analyzes a magnetic coupled field-structurefluid coupling model with finite element software for vibration propagation in oil.The simulations and experiments are carried out for a 10/0.4 kV single phase power transformer with continuous disk windings.The results show that the pressure fluctuation in the fuel tank comes from the linear superposition of the pressure wave of high and low voltage winding;wave pressure caused by high voltage winding and the whole winding ranges from-0.2 Pa to 0.39 Pa and from-0.15 Pa to 0.39 Pa respectively;the vibration from low voltage winding can be affected by the high voltage winding during propagation,therefore the tank vibration is greatly influenced by the vibration from high voltage winding.Tank vibration depends on the radiation pressure field of winding vibration and its vibration property,and the maximum acceleration gets 1.1 mm/s~2 and locates near the high voltage winding.It is suggested to detect the vibration in flat area where is close to the transformer winding to obtain a relatively larger vibration response.
For lacks of propagation model,propagation property and corresponding simulation of winding vibration in oil,this paper establishes and analyzes a magnetic coupled field-structurefluid coupling model with finite element software for vibration propagation in oil.The simulations and experiments are carried out for a 10/0.4 kV single phase power transformer with continuous disk windings.The results show that the pressure fluctuation in the fuel tank comes from the linear superposition of the pressure wave of high and low voltage winding;wave pressure caused by high voltage winding and the whole winding ranges from-0.2 Pa to 0.39 Pa and from-0.15 Pa to 0.39 Pa respectively;the vibration from low voltage winding can be affected by the high voltage winding during propagation,therefore the tank vibration is greatly influenced by the vibration from high voltage winding.Tank vibration depends on the radiation pressure field of winding vibration and its vibration property,and the maximum acceleration gets 1.1 mm/s~2 and locates near the high voltage winding.It is suggested to detect the vibration in flat area where is close to the transformer winding to obtain a relatively larger vibration response.
引文
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[9]马宏忠,弓杰伟,李凯,等.基于ANSYS Workbench的变压器绕组松动分析及判定方法[J].高电压技术,2016,42(1):192-199.MA Hongzhong,GONG Jiewei,LI Kai,et al.Analysis and determination method for transformer winding looseness based on ANSYS workbench[J].High Voltage Engineering,2016,42(1):192-199.
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[11]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.
[12]王洪方,王乃庆,李同生.短路条件下变压器绕组轴向振动等效单自由度分析[J].电工技术学报,2000,15(5):39-41.WANG Hongfang,WANG Naiqing,LI Tongsheng.Axial vibration equivalent one-degree analysis of power transformer winding under short-circuit[J].Transactions of China Electrotechnical Society,2000,15(5):39-41.
[13]朱叶叶,汲胜昌,张凡,等.电力变压器振动产生机理及影响因素研究[J].西安交通大学学报,2015,49(6):115-125.ZHU Yeye,JI Shengchang,ZHANG Fan,et al.Vibration mechanism and influence factors in power transformers[J].Journal of Xi’an Jiaotong University,2015,49(6):115-125.
[14]GARCIA B,BURGOS J C,ALONSON A M.Transformer tank vibration modelling as a method of detecting winding deformations:partⅡExperimental verification[J].IEEE Transactions on Power Delivery,2006,21(1):164-169.
[15]刘洪涛,马宏忠,高鹏,等.利用变压器箱体振动模型确定故障阈值[J].电力系统及其自动化学报,2012,24(6):36-40.LIU Hongtao,MA Hongzhong,GAO Peng,et al.Method of determining the threshold of transformer fault using transformer tank vibration model[J].Proceedings of the CSU-EPSA,2012,24(6):36-40.
[16]陈楷,王春宁,刘洪涛,等.基于振动的变压器监测与分析中最优测点选择[J].电力系统及其自动化学报,2013,25(3):56-60.CHEN Kai,WANG Chunning,LIU Hongtao,et al.Optimal measuring point selection based on monitoring and analysis of transformer vibration[J].Proceedings of the CSU-EPSA,2013,25(3):56-60.
[17]徐方,邵宇鹰,金之俭,等.变压器振动测点位置选择试验研究[J].华东电力,2012,40(2):274-277.XU Fang,SHAO Yuying,JIN Zhijian,et al.Experimental study of measuring point selection for transformer vibration detection[J].East China Electric Power,2012,40(2):274-277.
[18]张雪冰.变压器油箱振动功率流与绕组故障非电量监测方法研究[D].上海:上海交通大学,2009:25-37.
[19]WATTS G B.A mathematical treatment of the dynamic behaviour of a power-transformer winding under axial short-circuit forces[J].Proceedings of the Institution of Electrical Engineers,1963,110(3):551-560.
[20]瓦修京斯基C B(苏).变压器的理论与计算[M].崔立君,杜恩田,译.北京:机械工业出版社,1983:386-417.
[21]刘延柱,陈文良,陈立群.振动力学[M].北京:高等教育出版社,2000:130-132.
[22]杜功焕,朱哲民,龚秀芬.声学基础[M].南京:南京大学出版社,2001:163-184.
[23]胡静竹,刘涤尘,廖清芬,等.基于有限元法的变压器电磁振动噪声分析[J].电工技术学报,2016,31(15):81-88.HU Jingzhu,LIU Dichen,LIAO Qingfen,et al.Analysis of transformer electromagnetic vibration noise based on finite element method[J].Transactions of China Electrotechnical Society,2016,31(15):81-88.
[24]HORI Y,OKUYAMA K.Axial vibration analysis of transformer windings under short circuit conditions[J].IEEE Transactions on Power Apparatus&Systems,1980,99(2):443-451.
[2]王梦云.2005年110kV及以上变压器事故统计分析[J].供用电,2006,23(1):1-4.WANG Mengyun.Statistical analysis of 110kV and higher voltage transformer accident in 2005[J].Power Supply,2006,23(1):1-4.
[3]CIGRE Working Group 05.An international survey on failures in large power transformers in service[EB/OL].[2017-10-20].https:∥e-cigre.org/publication/ELT_088_1-an-international-survey-on-failures-inlarge-power-transformers.
[4]WANG M,VANDERMAAR A J,SRIVASTAVA K D.Review of condition assessment of power transformers in service[J].IEEE Electrical Insulation Magazine,2002,18(6):12-25.
[5]王钰,徐大可,李彦明,等.检测变压器绕组变形的低压脉冲法测试系统研究[J].高电压技术,1998,24(3):24-27.WANG Yu,XU Dake,LI Yanming,et al.A study on instrumentation techniques in LVI method for detecting transformer winding deformation[J].High Voltage Engineering,1998,24(3):24-27.
[6]孙翔,何文林,詹江杨,等.电力变压器绕组变形检测与诊断技术的现状与发展[J].高电压技术,2016,42(4):1207-1220.SUN Xiang,HE Wenlin,ZHAN Jiangyang,et al.Current status and development of test and diagnostic technique of transformer winding deformation[J].High Voltage Engineering,2016,42(4):1207-1220.
[7]陈伟根,赵立志,彭尚怡,等.激光拉曼光谱应用于变压器油中溶解气体分析[J].中国电机工程学报,2014,34(15):2485-2492.CHEN Weigen,ZHAO Lizhi,PENG Shangyi,et al.Analysis of dissolved gas in transformer oil based on laser Raman spectroscopy[J].Proceedings of the CSEE,2014,34(15):2485-2492.
[8]汲胜昌,李彦明,傅晨钊.负载电流法在基于振动信号分析法监测变压器铁心状况中的应用[J].中国电机工程学报,2003,23(6):154-158.JI Shengchang,LI Yanming,FU Chengzhao.Application of on-load current method in monitoring the condition of transformer’s core based on the vibration analysis method[J].Proceedings of the CSEE,2003,23(6):154-158.
[9]马宏忠,弓杰伟,李凯,等.基于ANSYS Workbench的变压器绕组松动分析及判定方法[J].高电压技术,2016,42(1):192-199.MA Hongzhong,GONG Jiewei,LI Kai,et al.Analysis and determination method for transformer winding looseness based on ANSYS workbench[J].High Voltage Engineering,2016,42(1):192-199.
[10]GARCIA B,BURGOS J C,ALONSON A M.Transformer tank vibration modelling as a method of detecting winding deformations:partⅠTheoretical foundation[J].IEEE Transactions on Power Delivery,2006,21(1):157-163.
[11]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.
[12]王洪方,王乃庆,李同生.短路条件下变压器绕组轴向振动等效单自由度分析[J].电工技术学报,2000,15(5):39-41.WANG Hongfang,WANG Naiqing,LI Tongsheng.Axial vibration equivalent one-degree analysis of power transformer winding under short-circuit[J].Transactions of China Electrotechnical Society,2000,15(5):39-41.
[13]朱叶叶,汲胜昌,张凡,等.电力变压器振动产生机理及影响因素研究[J].西安交通大学学报,2015,49(6):115-125.ZHU Yeye,JI Shengchang,ZHANG Fan,et al.Vibration mechanism and influence factors in power transformers[J].Journal of Xi’an Jiaotong University,2015,49(6):115-125.
[14]GARCIA B,BURGOS J C,ALONSON A M.Transformer tank vibration modelling as a method of detecting winding deformations:partⅡExperimental verification[J].IEEE Transactions on Power Delivery,2006,21(1):164-169.
[15]刘洪涛,马宏忠,高鹏,等.利用变压器箱体振动模型确定故障阈值[J].电力系统及其自动化学报,2012,24(6):36-40.LIU Hongtao,MA Hongzhong,GAO Peng,et al.Method of determining the threshold of transformer fault using transformer tank vibration model[J].Proceedings of the CSU-EPSA,2012,24(6):36-40.
[16]陈楷,王春宁,刘洪涛,等.基于振动的变压器监测与分析中最优测点选择[J].电力系统及其自动化学报,2013,25(3):56-60.CHEN Kai,WANG Chunning,LIU Hongtao,et al.Optimal measuring point selection based on monitoring and analysis of transformer vibration[J].Proceedings of the CSU-EPSA,2013,25(3):56-60.
[17]徐方,邵宇鹰,金之俭,等.变压器振动测点位置选择试验研究[J].华东电力,2012,40(2):274-277.XU Fang,SHAO Yuying,JIN Zhijian,et al.Experimental study of measuring point selection for transformer vibration detection[J].East China Electric Power,2012,40(2):274-277.
[18]张雪冰.变压器油箱振动功率流与绕组故障非电量监测方法研究[D].上海:上海交通大学,2009:25-37.
[19]WATTS G B.A mathematical treatment of the dynamic behaviour of a power-transformer winding under axial short-circuit forces[J].Proceedings of the Institution of Electrical Engineers,1963,110(3):551-560.
[20]瓦修京斯基C B(苏).变压器的理论与计算[M].崔立君,杜恩田,译.北京:机械工业出版社,1983:386-417.
[21]刘延柱,陈文良,陈立群.振动力学[M].北京:高等教育出版社,2000:130-132.
[22]杜功焕,朱哲民,龚秀芬.声学基础[M].南京:南京大学出版社,2001:163-184.
[23]胡静竹,刘涤尘,廖清芬,等.基于有限元法的变压器电磁振动噪声分析[J].电工技术学报,2016,31(15):81-88.HU Jingzhu,LIU Dichen,LIAO Qingfen,et al.Analysis of transformer electromagnetic vibration noise based on finite element method[J].Transactions of China Electrotechnical Society,2016,31(15):81-88.
[24]HORI Y,OKUYAMA K.Axial vibration analysis of transformer windings under short circuit conditions[J].IEEE Transactions on Power Apparatus&Systems,1980,99(2):443-451.