基于IEEE 693需求响应谱的变电设备隔震设计方法
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摘要
变电设备在地震中的损毁十分严重,基底隔震技术是提高设备抗震性能的有效途径,而目前变电设备隔震层设计的相关研究较少。为此,首先从变电设备地震破坏的关键原因出发,提出以合理的基底位移响应和加速度响应作为隔振设计目标及其计算方法,经分析后,建议选用新型隔震支座;其次基于IEEE 693需求响应谱,对隔震体系双线性模型进行参数化分析,分析结果验证了等效线性化方法的有效性;最后给出了变电设备隔震初步设计时的参数确定方法。研究表明,可以采用基于IEEE 693需求响应谱的等效线性化方法对隔震层参数进行初步设计,但所得响应结果偏于保守。
On-site investigation showed that substation equipment is very vulnerable to severe earthquakes.Due to its special structural configuration and material,base isolation is one of the effitive ways to improve seismic performance.So far the research findings on isolation design for substation equipments are rarely reported.Considering key reasons of equipment seismic damage,two design targets,namely reasonable displacement response and acceleration response at base,are proposed for base isolation and the calculation.New types of isolation device are suggested for substation equipment through qualitative analysis.Moreover,two types of parametric analysis,i.e.,equivalent linear analysis and time history analysis,are performed for bilinear model based on IEEE693 required response spectrum,and the effectivemess of equivalent linearization method is verified by comparing respective calculation results of the two methods.Finally,a preliminary design method is proposed to determine the parameters for base isolation of substation equipments.Results of the research show that the equivalent linearization method based on IEEE693 required response spectrum can be applied to the preliminay design of isolation layer parameters,however the obtained response results tend to conservative.
On-site investigation showed that substation equipment is very vulnerable to severe earthquakes.Due to its special structural configuration and material,base isolation is one of the effitive ways to improve seismic performance.So far the research findings on isolation design for substation equipments are rarely reported.Considering key reasons of equipment seismic damage,two design targets,namely reasonable displacement response and acceleration response at base,are proposed for base isolation and the calculation.New types of isolation device are suggested for substation equipment through qualitative analysis.Moreover,two types of parametric analysis,i.e.,equivalent linear analysis and time history analysis,are performed for bilinear model based on IEEE693 required response spectrum,and the effectivemess of equivalent linearization method is verified by comparing respective calculation results of the two methods.Finally,a preliminary design method is proposed to determine the parameters for base isolation of substation equipments.Results of the research show that the equivalent linearization method based on IEEE693 required response spectrum can be applied to the preliminay design of isolation layer parameters,however the obtained response results tend to conservative.
引文
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[16]Institute of Electrical and Electronics Engineers.IEEE Std-693-2005Recommended practice for seismic design of substations[S].NewYork:IEEE,2006.
[17]Institute of Electrical and Electronics Engineers.IEEE Std-1527-2006Recommended practice for the design of flexible buswork located inseismically active areas[S].New York:IEEE,2006.
[18]周庆文,周福霖,王清敏,等.叠层橡胶垫隔震性能及设计[J].工业建筑,2000,30(8):23-25.Zhou Qingwen,Zhou Fulin,Wang Qingmin,et al.The isolationbehavior and design of laminated rubber bearings[J].IndustrialConstruction,2000,30(8):23-25(in Chinese).
[19]日本建筑学会.隔震结构设计[M].刘文光译.北京:地震出版社,2006:54-55.
[2]于永清,李光范,李鹏,等.四川电网汶川地震电力设施受灾调研分析[J].电网技术,2008,32(11):5-10.Yu Yongqing,Li Guangfan,Li Peng,et al.Investigation and analysisof electric equipment damage in sichuan power grid caused byWenchuan earthquake[J].Power System Technology,2008,32(11):5-10(in Chinese).
[3]Xie Q,Zhu R Y.Damage to electric power grid infrastructure causedby natural disasters in China[J].IEEE Power and Energy Magazine,2011,9(2):28-36.
[4]谢强,朱瑞元,屈文俊.汶川地震中500kV大型变压器震害机制分析[J].电网技术,2011,35(3):221-225.Xie Qiang,Zhu Ruiyuan,Qu Wenjun.Analysis on seismic failuremechanism of 500 kV high-power transformer during Wenchuanearthquake[J].Power System Technology,2011,35(3):221-225(inChinese).
[5]Schiff A.Guide to improved earthquake performance of electricpower systems[R].Virginia:Americal Society of Civil Engineers,1999.
[6]Skinner R I,Robinson W H,Mc-Verry G H.工程隔震概论[M].谢礼立,周雍年,赵兴权,译.北京:地震出版社,1999:367-369.
[7]罗俊雄,刘季宇,卢睿芃,等.基础隔震技术于供电变压器之减震应用[R].台湾:国家地震工程研究中心,2000.
[8]Murota N,Feng M Q,Liu G Y.Earthquake simulator testing ofbase-isolated power transformers[J].IEEE Transactions on PowerDelivery,2006,21(3):1291-299.
[9]韩军科,朱全军,杨风利,等.基底隔震高压隔离开关抗震性能分析[J].电力建设,2008,29(6):39-42.Han Junke,Zhu Quanjun,Yang Fengli,et al.Analysis of quakeresistance performance of HV disconnecting switch with baseisolation[J].Electric Power Construction,2008,29(6):39-42(inChinese).
[10]Ala-Saadeghvaziri M,Feizi B,Kempner J L,et al.On seismicresponse of substation equipment and application of base isolation totransformers[J].IEEE Transactions on power delivery,2010,25(1):77-186.
[11]郜时昆.变电站主变压器隔震和消能减震技术研究[J].现代电力,2010,27(5):38-43.Gao Shikun.Research on the shock-isolation and energy dissipationtechnology of primary transformers in substations[J].Modern ElectricPower,2010,27(5):38-43(in Chinese).
[12]曹枚根.大型电力变压器及套管体系抗震性能及隔减震技术研究[D].广州大学,2011.
[13]谢强,王亚非.软母线连接电气设备地震模拟振动台试验研究[J].中国电机工程学报,2011,31(4):112-118.Xie Qiang,Wang Yafei.Shake-table test on earthquake simulation ofsubstation equipment interconnected by flexible bus[J].Proceedingsof the CSEE,2011,31(4):112-118(in Chinese).
[14]谢强,王亚非,朱瑞元.不同垂度导线连接变电站实体耦联设备振动台试验研究[J].地震工程与工程振动,2011,31(1):67-73.Xie Qiang,Wang Yafei,Zhu Ruiyuan.Shaking table test on realsubstation equipments connected by conductors with different sag[J].Journal of Earthquake Engineering and Engineering Vibration,2011,31(1):67-73(in Chinese).
[15]Dastous J B,Pierre J R.Experimental investigation on the dynamicbehavior of flexible conductors between substation equipment duringan earthquake[J].IEEE Transactions on Power Delivery,1996,11(2):801–807.
[16]Institute of Electrical and Electronics Engineers.IEEE Std-693-2005Recommended practice for seismic design of substations[S].NewYork:IEEE,2006.
[17]Institute of Electrical and Electronics Engineers.IEEE Std-1527-2006Recommended practice for the design of flexible buswork located inseismically active areas[S].New York:IEEE,2006.
[18]周庆文,周福霖,王清敏,等.叠层橡胶垫隔震性能及设计[J].工业建筑,2000,30(8):23-25.Zhou Qingwen,Zhou Fulin,Wang Qingmin,et al.The isolationbehavior and design of laminated rubber bearings[J].IndustrialConstruction,2000,30(8):23-25(in Chinese).
[19]日本建筑学会.隔震结构设计[M].刘文光译.北京:地震出版社,2006:54-55.
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