摘要
支柱类设备是变电站中的一类重要设备,具有高度大、结构柔、重心高的结构特点,通常通过母线与其他设备连接构成回路。震害资料表明,这类设备的地震易损性极高,地震作用下设备根部断裂及移位是造成变电站停运甚至电力中断的重要原因。为保障特高压变电站的稳定运行,支柱类设备及其耦联体系的抗震研究是电力设备抗震的重要部分。文中首先根据某特高压复合支柱绝缘子的结构组成参数建立了可用于支柱类设备的单体变截面梁模型和耦联体系线性弹簧模型,然后通过足尺±800 kV复合支柱绝缘子单体及管母线耦联体系的振动台试验对模型进行验证,最后基于对理论模型的参数分析,给出了文中建议的特高压支柱类设备管母线耦联体系抗震设计方法。
As a vital type of equipment in the substation,support equipment has such structural features as large height,flexible structure and high center of gravity,and is normally connected with other equipment by busbar so to constitute a circuit.The seismic disaster data shows that the seismic vulnerability of this type of equipment is ex⁃tremely high.The root breakage and great displacement of the equipment under strong seismic action are the impor⁃tant causes of substation shutdown and even power interruption.For assuring normal operation of UHV substation,the study on seismic performance of the support equipment and coupling system is an important part in seismic of electrical equipment.In this paper,the variable⁃section beam model and the coupling system linear spring model for the support equipment are set up in accordance with structure parameters of one certain UHV composite support insu⁃lator.Then,the models are verified by the shaking table test through the single and full scale±800 kV composite sup⁃port insulator and the rigid busbar coupling system.Finally,the seismic design method of rigid busbar coupling sys⁃tem of UHV support equipment suggested in this paper is given on the basis of parameter analysis of the theoretical model.
作者
张玥
周杰
何畅
ZHANG Yue;ZHOU Jie;HE Chang(Shibei Electricity Supply Company of State Grid Shanghai Municipal Electric Power Company,Shanghai 200072,China;School of Civil Engineering,Central South University,Changsha 410075,China)
出处
《高压电器》
CAS
CSCD
北大核心
2022年第8期127-134,141,共9页
High Voltage Apparatus
基金
国家自然科学基金项目资助(52008406)
湖南省自然科学基金(2021JJ40737)。
关键词
支柱类设备
管母线耦联体系
地震响应
理论模型
参数分析
support equipment
coupled system connected by rigid busbar
seismic response
theoretical model
parameter analysis
