特高压HGIS设备抗震性能分析
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摘要
为了更好地分析了解特高压混合型气体绝缘开关(HGIS)的抗震性能,并进一步对其进行改善,选取了四种地震波对1 100 kV HGIS的整体结构进行动力特性和地震反应谱分析,得到了结构的自振频率和振型特征.在分析过程中,考虑到特高压设备固有频率与地震波主频率相近,会发生拟共振的情况,采用由正弦共振三波及正弦共振调幅五波组成的调幅波串进行计算,分析整体结构的机械强度和抗震性能.计算结果显示,1 100 kV HGIS在该组地震波作用下具有一定的安全裕度,为特高压设备抗震性能的分析提供有效数据.
In order to analyze and understand the seismic performances of ultra-high voltage(UHV) hybrid gas insulation switch(HGIS) as well as further improve its seismic performance,the analysis on the dynamic characteristics and seismic response spectra for the integral structure of 1 100 kV HGIS was conducted under four seismic waves.In addition,the natural frequency and mode characteristic of vibration for the structure were acquired.In the analysis process,it was considered that the natural frequency of UHV equipment and the main frequency of seismic waves are so similar that the quasi resonance will occur,and thus,the calculation was performed with adopting the amplitude-modulated wave string composed of both sinusoidal-resonant three-wave and modulated sinusoidal-resonant five-wave.In addition,the mechanical strength and seismic performance of integral structure were analyzed.The calculated results show that the 1 100 kV HGIS under the proposed seismic waves has certain safety margin,which can provide the effective data for the analysis on the seismic performance of UHV equipment.
In order to analyze and understand the seismic performances of ultra-high voltage(UHV) hybrid gas insulation switch(HGIS) as well as further improve its seismic performance,the analysis on the dynamic characteristics and seismic response spectra for the integral structure of 1 100 kV HGIS was conducted under four seismic waves.In addition,the natural frequency and mode characteristic of vibration for the structure were acquired.In the analysis process,it was considered that the natural frequency of UHV equipment and the main frequency of seismic waves are so similar that the quasi resonance will occur,and thus,the calculation was performed with adopting the amplitude-modulated wave string composed of both sinusoidal-resonant three-wave and modulated sinusoidal-resonant five-wave.In addition,the mechanical strength and seismic performance of integral structure were analyzed.The calculated results show that the 1 100 kV HGIS under the proposed seismic waves has certain safety margin,which can provide the effective data for the analysis on the seismic performance of UHV equipment.
引文
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[2]魏华,杜怀周,朴莹哲,等.钢管混凝土框架柱的抗震性能[J].沈阳工业大学学报,2008,30(2):223-227.(WEI Hua,DU Huai-zhou,PU Ying-zhe,et al.Seis-mic resistance of concrete filled steel tubular framecolumn[J].Journal of Shenyang University of Tech-nology,2008,30(2):223-227.)
[3]程永锋,朱全军,卢智成.变电站电力设施抗震措施研究现状与发展趋势[J].电网技术,2008,32(22):84-89.(CHENG Yong-feng,ZHU Quan-jun,LU Zhi-cheng.Progress and development trend on seismic measuresof electric pow er equipments in transformer substation[J].Power System Technology,2008,32(22):84-89.)
[4]胡聿贤.地震工程学[M].北京:地震出版社,2004:99-108.(HU Yu-xian.Earthquake engineering[M].Beijing:Seismological Press,2004:99-108.)
[5]李兴权,魏华,冯艳峰.基于神经网络的高强钢管砼柱抗震性能研究[J].沈阳工业大学学报,2005,27(6):682-685.(LI Xing-quan,WEI Hua,FENG Yan-feng.Study onseismic properties of high strength CFT columns basedon neural netw ork[J].Journal of Shenyang Universi-ty of Technology,2005,27(6):682-685.)
[6]林慧荣.电气设备抗震设计及选型[J].科学之友,2007,38(10):38-39.(LIN Hui-rong.Seismic design and shaping of electri-cal equipment[J].Friend of Science Amateurs,2007,38(10):38-39.)
[7]Johnston M J S,Linde A T.36 implications of crustalstrain during conventional,slow,and silent earthquakes[J].International Geophysics,2002,81:589-605.
[8]Ren X X.Study on noise in simultaneous geomagneticdifference data caused by the effect of Sq local-timevariation[J].Acta Seismologica Sinica,2006,19(1):87-92.
[9]胡于进.有限元分析及应用[M].北京:清华大学出版社,2009:202-215.(HU Yu-jin.Finite element analysis and applications[M].Beijing:Tsinghua University Press,2009:202-215.)
[10]张允真.弹性力学及其有限元法[M].北京:中国铁道出版社,1983:86-93.(ZHANG Yun-zhen.Elastic mechanics and finite ele-ment method[M].Beijing:China Railw ay PublishingHouse,1983:86-93.)
[11]朱伯芳.有限单元法原理与应用[M].北京:中国水利水电出版社,1998:146-162.(ZHU Bo-fang.The finite element method theory andapplications[M].Beijing:China Waterpow er Press,1998:146-162.)
[12]李亚琦.电瓷型高压电气设备体系抗震性能分析[D].北京:中国地震局地球物理研究所,2002:27-36.(LI Ya-qi.Seismic analysis of the porcelain high-voltage equipments system[D].Beijing:China Insti-tute of Geophysics,2002:27-36.)
[13]张伯艳,杜修力.550kV高压开关抗震性能计算分析[J].工程抗震,1999,6(2):34-37.(ZHANG Bo-yan,DU Xiu-li.Analysis of seismic per-formance for 550 kV high-voltage breaker[J].Earth-quake Resistant Engineering,1999,6(2):34-37.)
[14]楼梦麟,李常青.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.(LOU Meng-lin,LI Chang-qing.Evaluation of earth-quake resistant behavior of outdoor impulse voltagegenerators[J].Structural Engineers,2008,24(4):80-84.)
[15]李天,李杰,沈祖炎.高压变电站抗震可靠性分析[J].地震工程与工程振动,2000,20(3):43-49.(LI Tian,LI Jie,SHEN Zu-yan.Seismic reliability analy-sis of high voltage substation[J].Earthquake Engineer-ing and Engineering Vibration,2000,20(3):43-49.)
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