南方电网技术2017，Vol.11Issue(5)：9-16,23,9.DOI:10.13648/j.cnki.issn1674-0629.2017.05.002
±800kV特高压直流滤波电容器抗震性能分析
Analysis on Seismic Performance of ± 800 kV UHVDC Filter Capacitor
摘要
Abstract
In order to evaluate and optimize the seismic performance of ± 800 kV UHVDC filter capacitor,a elaborate nolinear finite element model(FEM) is established and the seismic responses of filter capacitor is obtained from time history computing method.Aiming at a ± 800 kV UHVDC filter capacitor,it is found that UHV filter capacitor has strong non-linearity and low frequencies and it generates large displacement responses under earthquakes.In addition,the safety factor of hanger insulators for fortification earthquakes doesn't meet the requirements of relevant codes.Through the analysis on the coefficients of the pretension force and installation angles of bottom insulators.It is concluded that the displacement responses can be reduced by increasing the pretension force in insulators and the maximum axial force of filter capacitor can be adjusted by optimizing the installation angles of bottom insulators,the DC filter can meet the seismic requirements when the installation angle is set as 80 °,the pretension force is set as 40 kN after the specified tension load for hanger insulators is no less than 536 kN.关键词
特高压直流/滤波电容器/悬挂设备/抗震性能Key words
UHVDC/filter capacitor/suspended equipment/seismic performance分类
信息技术与安全科学引用本文复制引用
何畅,谢强,杨振宇,卓然..±800kV特高压直流滤波电容器抗震性能分析[J].南方电网技术,2017,11(5):9-16,23,9.基金项目
霍英东教育基金会优选资助课题(114021) （114021）
南方电网公司科技项目.Supported by Fok Ying-Tung Education Foundation for Young Scientists (114021) （114021）
Scienle and Technology Project of China Southern Power Grid. （）
