南方电网技术2017，Vol.11Issue(12)：1-8,8.DOI:10.13648/j.cnki.issn1674-0629.2017.12.001
±800kV滇西北特高压直流工程穿墙套管抗震性能研究
Seismic Performance Study on DC Wall Bushing of ±800 kV Dianxibei UHVDC Transmission Project
罗兵 1饶宏 1卓然 1胡蓉 2孙帮新 2谢强 3王晓游3
作者信息
- 1. 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
- 2. 中国南方电网超高压输电公司,广州510620
- 3. 同济大学建筑工程系,上海200092
- 折叠
摘要
Abstract
In high altitude and high earthquake intensity areas,excellent seismic performance should be the key point for UHVDC (ul tra-high voltage direct current) wall bushing design,manufacture and operation.In order to solve seismic performance problems of wall bushing,according to the 9 degree intensity anti-seismic requirement of the Xinsong sending converter station of Dianxibei UHVDC transmission project,in order to evaluate wall bushing seismic performance,the finite element models combined with the wall bushing and valve hall of ±800 kV Dianxibei UHVDC transmission project have been established to get the seismic responses.As the analysis results show that the seismic responses are large,the anti-seismic design of the metal friction type dampers has been carried out to increase the safety and anti-seismic reliability of the wall bushing.Then the bushing support used in the shaking table test has been designed and manufactured based on the numerical simulation.The shaking table test on the DC wall bushing of project supply equipment has been made to compare the seismic response before and after the dampers installed on DC wall bushing.The results show that the existence of metal friction dampers could decrease the seismic response obviously.The maximum stress response decreases 39.2％ while the maximum relative displacement decreases 71.3％,and the stress safety factor could increase to 2.52 from 1.53.The antiseismic performance of DC wall bushing has been substantially increased to fulfill the project seismic requirement.关键词
特高压直流穿墙套管/有限元分析/振动台试验/金属摩擦阻尼器/地震响应Key words
UHVDC wall bushing/finite element analysis/shaking table test/metal friction damper/seismic responses分类
信息技术与安全科学引用本文复制引用
罗兵,饶宏,卓然,胡蓉,孙帮新,谢强,王晓游..±800kV滇西北特高压直流工程穿墙套管抗震性能研究[J].南方电网技术,2017,11(12):1-8,8.
