南方电网技术2016，Vol.10Issue(11)：16-23,8.DOI:10.13648/j.cnki.issn1674-0629.2016.11.003
考虑金具滑移的±800 kV特高压管母耦联直流复合支柱绝缘子的抗震性能
Seismic Performance of Composite Post Insulators Interconnected by Rigid Bus at ±800 kV UHVDC Considering the Slippage of Fittings
秦亮 1卓然 2谢强 1何畅1
作者信息
- 1. 同济大学建筑工程系，上海200092
- 2. 直流输电技术国家重点实验室 南方电网科学研究院，广州510663
- 折叠
摘要
Abstract
To study the seismic response of UHVDC insulators interconnection system under different actions of earthquake,the slip-ping fitting at the top of insulator is simulated as nonlinear spring,and the finite element method (FEM)is applied to analyze the seis-mic response.The data of acceleration,displacement and stress response at the critical parts of single and interconnected insulator sys-tem are obtained under multiple earthquake wave.The influence rules of tubular busbar on composite insulator are obtained from the comparison of dynamic responses of single and interconnected system.Comparing with equivalent single post insulator,results of the interconnected system show that the frequencies of interconnected system are increased;accelerations at the top of the insulator are much higher,and the displacement responses show much randomness;stresses at the bottom of the insulator are small and far less than the ultimate strength of composite insulator;the slippage distance of the fittings has great influence on the acceleration at the top of the insulator,and the effects of slippage on equipment must be taken into consideration in seismic design when the tubular busbar is used.关键词
地震响应/特高压直流/滑移金具/复合绝缘子/管型母线Key words
seismic response/UHVDC/slipping fittings/composite insulator/tubular busbar分类
信息技术与安全科学引用本文复制引用
秦亮,卓然,谢强,何畅..考虑金具滑移的±800 kV特高压管母耦联直流复合支柱绝缘子的抗震性能[J].南方电网技术,2016,10(11):16-23,8.
