35kV电容器成套装置抗震性能的仿真分析
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摘要
在地震作用下,电容器成套装置容易受到破坏。对某种型号35kV电容器成套装置的抗震性能进行鉴定分析,并对GB50260—1996《电力设施抗震设计规范》和IEEEStd693—2005标准推荐的抗震验算方法进行比较分析。应用通用有限元程序ANSYS建立此电容器结构体系的有限元模型,进行了地震作用下的动力反应分析。分别输入正弦共振调幅五波、Elcentro波、Landers波和人工波的动力时程分析结构的响应。通过增加2个绝缘支柱瓷瓶,此电容器成套装置满足抗震性能的要求。电容器的抗震性能高于IEEEStd693—2005定义的中等抗震水平,略低于高等抗震水平。
Capacitor installations are vulnerable during earthquake.The seismic behavior of 35 kV capacitor installation was studied,as well as the comparison between two methods proposed by the 'Code for Design of Seismic of Electrical Installations' and the 'IEEE Std 693—2005' for seismic design.The 35 kV capacitor installation was modeled and its seismic response was analyzed using the finite element software ANSYS.The dynamic characteristics was investigated by inputting different waves respectively,such as five amplitude modulation resonance sine waves,Elcentro earthquake wave,Landers earthquake wave and artificial earthquake wave.The result shows that the capacitor installation can meet require of seismic behavior through adding two porcelain bushings,which is higher than the middle seismic level and lower than the high seismic level defined in the 'IEEE Std 693—2005'.
Capacitor installations are vulnerable during earthquake.The seismic behavior of 35 kV capacitor installation was studied,as well as the comparison between two methods proposed by the 'Code for Design of Seismic of Electrical Installations' and the 'IEEE Std 693—2005' for seismic design.The 35 kV capacitor installation was modeled and its seismic response was analyzed using the finite element software ANSYS.The dynamic characteristics was investigated by inputting different waves respectively,such as five amplitude modulation resonance sine waves,Elcentro earthquake wave,Landers earthquake wave and artificial earthquake wave.The result shows that the capacitor installation can meet require of seismic behavior through adding two porcelain bushings,which is higher than the middle seismic level and lower than the high seismic level defined in the 'IEEE Std 693—2005'.
引文
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[6]IEEE Std693—2005IEEE Recommended practice for seismic design of substations[S].NJ:Piscataway,2006.
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[9]Clough R W,Penzen J.Dynamics of Structure[M].New York:McGraw-Hill,1993.
[2]谢强.电力系统的地震灾害研究现状与应急响应[J].电力建设,2008,29(8):1-6.
[3]谢强,王健生,杨雯,等.220kV断路器抗震性能地震模拟振动台试验[J].电力建设,2011,32(10):86-90.
[4]李亚琦,李小军,刘锡荟.电力系统抗震研究概述[J].世界地震工程,2002,18(4):79-84.
[5]GB50260—1996电力设施抗震设计规范[S].北京:中国计划出版社,1997.
[6]IEEE Std693—2005IEEE Recommended practice for seismic design of substations[S].NJ:Piscataway,2006.
[7]楼梦麟,潘曦.电容器双塔结构地震反应分析[J].结构工程师,2009,25(6):84-88.
[8]楼梦麟,李长青.室外冲击电压发生器的抗震性能评价问题的讨论[J].结构工程师,2008,24(4):80-84.
[9]Clough R W,Penzen J.Dynamics of Structure[M].New York:McGraw-Hill,1993.
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