油浸式高压变压器地震易损性分析
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摘要
油浸式变压器是由多种材料组成的复杂结构。本文对油浸式高压变压器建立了较为精确的有限元模型,考虑了各组件之间相互作用的影响。对该设备进行了动力性能和地震响应分析以及易损性分析。分析结果表明,大型高压变压器在地震中的首要破坏模式为瓷套破坏,其地震响应的离散度较高。易损性分析得到设备的地震易损性曲线,可直接应用于电力系统的抗震分析。
It is difficult to analyse the seismic response of the transformers,because the structure of the transformers is more complex.An accurate finite element model of a high-voltage transformer is established.The model considers the interaction between the components.The seismic responses of the high-voltage transformers are computed by the model.The numerical studies of the seiemic respronses of the equipment show that porcelain bushings is the most vulnerable compenent in strong earthquakes.Seismic fragility curves of the transformers are presented for estimating the seismic damage of the transformers.
It is difficult to analyse the seismic response of the transformers,because the structure of the transformers is more complex.An accurate finite element model of a high-voltage transformer is established.The model considers the interaction between the components.The seismic responses of the high-voltage transformers are computed by the model.The numerical studies of the seiemic respronses of the equipment show that porcelain bushings is the most vulnerable compenent in strong earthquakes.Seismic fragility curves of the transformers are presented for estimating the seismic damage of the transformers.
引文
[1]李天,李杰,沈祖炎.电力系统地震灾害分析[J].世界地震工程,2000,16(4):19-24.
[2]Ang A H-S,Pires J A,Villaverde R.A model for the seismic reliability assessment of electric power transmission systems[J].Reliability En-ginieering and System Safety,1996,51(1):7-22.
[3]GB50260-96,电力设施抗震设计规范[S].
[4]李子国,景丽英.S7-200/10变型变压器抗震分析[J].地震工程与振动,1997,17(4):99-105.
[5]李子国,汤国君,等.液体-固体相互作用的电力变压器结构的地震响应分析[J].地震工程与工程振动,1998(1),18(1):103-108.
[6]Bellorini S,Salvetti M,Bettinali F,Zafferani G.Seismic quallification of transformer high voltage bushings[J].IEEE Transaction on Power Deliv-ery,1998,13(4):1208-1213.
[7]陈淮,孙增寿,李晓玉.高压变压器抗震可靠度分析[J].世界地震工程,2001,17(4):104-106.
[8]Ersoy S,Saadeghvaziri MA.Seismic response of transformer-bushing systems[J].IEEE Transactions on Power Delivery,2004,19(1):131-137.
[9]Filiatrault A,Matt H.Seismic response of high voltage electrical transformer-bushing Systems[J].Journal of Structural Engineering.2006,132(2):287-295.
[10]龙驭球.有限元概论[M].北京:高等教育出版社,1978.
[11]第一机械工业部.变压器产品样本[R].1977.
[12]李晓玉,陈淮,李天.高压电气设备动态特性分析[J].郑州工业大学学报.1999,20(2):61-63.
[13]Anagnos T.Development of an electrical substation equipment performance database for evaluation of equipment fragilities[R].PEER,1999.
[14]孟敏婕,叶志明,陈玲俐.S7型油浸式变压器有限元建模与抗震性能分析[A].第七届全国地震工程学术会议论文集[C],北京:地震出版社.
[2]Ang A H-S,Pires J A,Villaverde R.A model for the seismic reliability assessment of electric power transmission systems[J].Reliability En-ginieering and System Safety,1996,51(1):7-22.
[3]GB50260-96,电力设施抗震设计规范[S].
[4]李子国,景丽英.S7-200/10变型变压器抗震分析[J].地震工程与振动,1997,17(4):99-105.
[5]李子国,汤国君,等.液体-固体相互作用的电力变压器结构的地震响应分析[J].地震工程与工程振动,1998(1),18(1):103-108.
[6]Bellorini S,Salvetti M,Bettinali F,Zafferani G.Seismic quallification of transformer high voltage bushings[J].IEEE Transaction on Power Deliv-ery,1998,13(4):1208-1213.
[7]陈淮,孙增寿,李晓玉.高压变压器抗震可靠度分析[J].世界地震工程,2001,17(4):104-106.
[8]Ersoy S,Saadeghvaziri MA.Seismic response of transformer-bushing systems[J].IEEE Transactions on Power Delivery,2004,19(1):131-137.
[9]Filiatrault A,Matt H.Seismic response of high voltage electrical transformer-bushing Systems[J].Journal of Structural Engineering.2006,132(2):287-295.
[10]龙驭球.有限元概论[M].北京:高等教育出版社,1978.
[11]第一机械工业部.变压器产品样本[R].1977.
[12]李晓玉,陈淮,李天.高压电气设备动态特性分析[J].郑州工业大学学报.1999,20(2):61-63.
[13]Anagnos T.Development of an electrical substation equipment performance database for evaluation of equipment fragilities[R].PEER,1999.
[14]孟敏婕,叶志明,陈玲俐.S7型油浸式变压器有限元建模与抗震性能分析[A].第七届全国地震工程学术会议论文集[C],北京:地震出版社.
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