加装减震装置的特高压复合材料支柱绝缘子振动台试验研究
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摘要
为研究复合材料电气设备抗震性能与减震技术应用效果,对特高压复合支柱材料绝缘子进行了抗震与减震地震模拟振动台试验,研究了设备动力特性和地震响应。白噪声试验结果表明:该复合材料支柱绝缘子在安装减震器后第1阶频率由1. 11 Hz降低到1. 04 Hz,表明减震器对设备结构的整体刚度影响较小。3种地震波试验结果表明:设备地震响应与地震动峰值加速度在抗震试验中呈线性变化关系,但在减震试验的应力响应中呈非线性变化关系;设备安装减震器后,试验地震动峰值加速度越大,减震效率越高,最高达到了66. 32%;而位移减震率与地震动峰值加速度无明显规律,最大位移减震率为49. 36%。试验研究结果表明:试验设备安装减震器后抗震性能得到显著提升,为复合材料电气设备抗震性能研究与减震技术应用提供了参考依据。
In order to research the seismic performance of the composite material electrical equipment and the effect of seismic mitigation technology,shake table tests were carried out on a UHV composite post insulator to study the dynamic characteristics and earthquake response. The first-order frequency of the equipment is reduced from1. 11 Hz to 1. 04 Hz after the dampers installed in the white noise test,which indicates that the damper has less influence on the overall stiffness of the equipment structure. The test results of 3 seismic ground motions show that a linear relationship between the seismic response and the peak ground acceleration( PGA),while the relationship is nonlinear for seismic stress in tests with damper. After the installation of the damper,the efficiency of the reduction on seismic response increases as the PGA of input ground motion increase,and with a maximum efficiency of66. 32%. There is no obvious relationship between the displacement reduction rate and PGA,in which the maximum displacement reduction rate is 49. 36%. The experimental results show that the seismic performance of the equipment with dampers is significantly improved,which provides a reference for the seismic performance evaluation and the application of seismic mitigation technology for composite electrical equipment.
In order to research the seismic performance of the composite material electrical equipment and the effect of seismic mitigation technology,shake table tests were carried out on a UHV composite post insulator to study the dynamic characteristics and earthquake response. The first-order frequency of the equipment is reduced from1. 11 Hz to 1. 04 Hz after the dampers installed in the white noise test,which indicates that the damper has less influence on the overall stiffness of the equipment structure. The test results of 3 seismic ground motions show that a linear relationship between the seismic response and the peak ground acceleration( PGA),while the relationship is nonlinear for seismic stress in tests with damper. After the installation of the damper,the efficiency of the reduction on seismic response increases as the PGA of input ground motion increase,and with a maximum efficiency of66. 32%. There is no obvious relationship between the displacement reduction rate and PGA,in which the maximum displacement reduction rate is 49. 36%. The experimental results show that the seismic performance of the equipment with dampers is significantly improved,which provides a reference for the seismic performance evaluation and the application of seismic mitigation technology for composite electrical equipment.
引文
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[15]尤红兵,张郁山,赵凤新.电气设备振动台试验输入的合理确定[J].电网技术,2012,36(5):118-124.YOU Hongbing,ZHANG Yushan,ZHAO Fengxin. Reasonable determination of input waves for shake-table test of electrical equipments[J]. Power System Technology,2012,36(5):118-124.(in Chinese)
[16] Q/GDW 11132-2013特高压瓷绝缘电气设备抗震设计及减震装置安装与维护技术规程[S].北京:中国计划出版社,2014.Q/GDW 11132-2013 Technical Specification for Seismic Design of Ultra-high Voltage Porcelain Insulating Equipments and Installation/Maintenance to Energy Dissipation Devices[S]. Beijing,China:China Electric Power Press,2014.(in Chinese)
[2]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 Yongfeng,ZHU Quanjun,LU Zhicheng. Progress and development trend on seismic measures of electric power equipments in transformer substation[J]. Power System Technology,2008,32(22):84-89.(in Chinese)
[3] FILIATRAULT A,STEARNS C. Electrical substation equipment interaction:experimental rigid conductor studies[R]. San Jose:Pacific Earthquake Engineering Research Center,1999.
[4]刘如山,刘金龙,颜冬启,等.庐山7. 0级地震电力设施震害调查分析[J].自然灾害报,2013,22(5):83-90.LIU Rushan,LIU Jinlong,YAN Dongqi,et al. Seismic damage investigation and analysis of electric power system in Lushan Ms 7. 0 earthquake[J]. Journal of Natural Disasters,2013,22(5):83-90.(in Chinese)
[5]于金光,郝际平,解琦,等.美日中高压电气设备地震动力反应放大系数比较研究[J].土木工程学报,2010,43(增1):77-80.YU Jinguang,HAO Jiping,XIE Qi,et al. Comparative study on dynamic response magnification factors for high-voltage electric equipment between American Japannese and Chinese[J]. China Civil Engineering Journal,2010,43(Suppl. 1):77-80.(in Chinese)
[6]柏文,戴君武,宁晓晴,等.电流互感器抗震性能及减震振动台试验[J].世界地震工程,2017,33(3):1-6.BAI Wen,DAI Junwu,NING Xiaoqing,et al. Research on seismic performance of current transformer and seismic reduction shake table test[J].World Earthquake Engineering,2017,33(3):1-6.(in Chinese)
[7] HWASUNG Roh,NICHOLAS D Oliveto,ANDREI M Reinhorn. Experimental test and modeling of hollow-core composite insulators[J]. Nonlinear Dyn,2012,69:1651-1663.
[8] DASTOUS J B,FILIATRAULT A,PIERRE J R. Estimation of displacement at interconnection points of substation equipment subjected to earthquake[J]. IEEE Transactions on Power Delivery,2004,19(2):618-628.
[9]程永锋,卢智成,刘振林,等.川藏联网工程复合材料电气设备地震模拟振动台试验研究[J].电力建设,2015,36(3):49-58.CHENG Yongfeng,LU Zhicheng,LIU Zhenlin,et al. Experimental study of earthquake simulation shaking table on electrical equipment of composite material for Sichuan-Tibet interconnection project[J]. Electric Power Construction,2015,36(3):49-58.(in Chinese)
[10]程永锋,代泽兵,卢智成,等.高压电气设备的减震设计方法研究[J].高压电器,2013,49(9):69-79.CHENG Yongfeng,DAI Zebing,LU Zhicheng,et al. Study on method of seismic design for electrical equipment with engrgy dissipation devices in China[J]. High Voltage Apparatus,2013,49(9):69-79.(in Chinese)
[11]刘振林,卢智成,孟宪政,等.用于高压电气设备的剪切型铅减震器性能影响研究[J].地震工程学报,2016,38(4):564-569.LIU Zhenlin,LU Zhicheng,MENG Xianzheng,et al. Research on performance of shearing mode lead damper applied to high-voltage electric equipment[J]. China Earthquake Engineering Journal,2016,38(4):564-569.(in Chinese)
[12]李圣,卢智成,邱宁,等.加装金属减震装置的1000 kV避雷器振动台试验研究[J].高电压技术,2015,41(5):1740-1745.LI Sheng,LU Zhicheng,QIU Ning,et al. Study on shaking table test of 1000 kV surge arrester with metal damper device[J]. High Voltage Engineering,2015,41(5):1740-1745.(in Chinese)
[13]中国电力科学研究院.特高压电气设备抗震评估与减震设计研究[R].北京:中国电力科学研究院,2012.China Electric Power Research Institute. Research report on seismic evaluation and energy dissipation design of UHV electrical equipment[R].Beijing,China:China Electric Power Research Institute,2012.(in Chinese)
[14]卢智成,代泽兵,孟宪政,等.特高压变电设备抗震振动台试验方法研究[J].建筑结构,2013,43(增1):1269-1272.LU Zhicheng,DAI Zebing,MENG Xianzheng,et al. Study on seismic shaking table test method of UHV substation equipments[J]. Building Structure,2013,43(Suppl. 1):1269-1272.(in Chinese)
[15]尤红兵,张郁山,赵凤新.电气设备振动台试验输入的合理确定[J].电网技术,2012,36(5):118-124.YOU Hongbing,ZHANG Yushan,ZHAO Fengxin. Reasonable determination of input waves for shake-table test of electrical equipments[J]. Power System Technology,2012,36(5):118-124.(in Chinese)
[16] Q/GDW 11132-2013特高压瓷绝缘电气设备抗震设计及减震装置安装与维护技术规程[S].北京:中国计划出版社,2014.Q/GDW 11132-2013 Technical Specification for Seismic Design of Ultra-high Voltage Porcelain Insulating Equipments and Installation/Maintenance to Energy Dissipation Devices[S]. Beijing,China:China Electric Power Press,2014.(in Chinese)