[1]朱 东,高 湛,程 亮.近场地震作用下柔性直流换流阀抗震性能分析[J].华南地震,2023,(04):87-94.[doi:10.13512/j.hndz.2023.04.12]
 ZHU Dong,GAO Zhan,CHENG Liang.Seismic Performance Analysis of Flexible DC Converter Valve Under Near-field Ground Motions[J].,2023,(04):87-94.[doi:10.13512/j.hndz.2023.04.12]
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近场地震作用下柔性直流换流阀抗震性能分析()
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华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2023年04期
页码:
87-94
栏目:
土木工程防震减灾
出版日期:
2023-12-30

文章信息/Info

Title:
Seismic Performance Analysis of Flexible DC Converter Valve Under Near-field Ground Motions
文章编号:
1001-8662(2023)04-0087-08
作者:
朱 东高 湛程 亮
中国电力工程顾问集团中南电力设计院有限公司,武汉 430071
Author(s):
ZHU DongGAO ZhanCHENG Liang
Central Southern China Electric Power Design Institute Co.,Ltd. of China Power Engineering Consulting Group , Wuhan 430071, China
关键词:
柔性直流换流阀近场脉冲型地震动地震作用放大效应
Keywords:
Flexible DC Converter valve Near-fault pulse-type ground motion Earthquake action Amplifica‐tion effect
分类号:
TM564
DOI:
10.13512/j.hndz.2023.04.12
文献标志码:
A
摘要:
柔性直流换流阀具有重心高和柔度大的特点,其地震作用下的抗震性能关系到整个输电工程的安全。以某柔性直流换流站工程的柔性直换流阀作为研究对象,研究近场地震动作用下柔性直流换流阀的抗震性能。首先建立了换流阀有限元模型,模态分析后得到换流阀的自振特性。然后选取8条近场脉冲型地震动和远场地震动记录,并进行地震动作用下换流阀结构整体响应计算,对比分析近场脉冲型地震动和远场地震动作用下换流阀的加速度响应和应力响应。结果显示:与远场地震动相比,近场脉冲型地震动作用下换流阀上部结构的加速度放大效应更加显著,支柱绝缘子根部和框架的等效应力也明显增大,对换流阀结构抗震安全不利。
Abstract:
Flexible DC converter valve has the characteristics of high center of gravity and significant flexibility, and its seismic performance is related to the safety of the entire power transmission system. In this study,a flexible DC converter valve of a DC converter station project is taken as the research object to study its seismic performance under near-field ground motion. Firstly, a finite element model of the converter valve is established, and the natural vibration characteristics of the converter valve are obtained after modal analysis. Subsequently,eight near-field pulse-type ground motions and far-field ground motions are selected,and the overall response of the converter valve structure under ground motions is calculated,and the acceleration response and stress response of converter valve under near-field pulse-type ground motions and far-field ground motions are compared and analyzed. The results show that compared with the far-field ground motion, the acceleration amplification effect of the upper structure of the converter valve under the near-field pulse-type ground motion is more significant, and the equivalent stress of the root of the column insulator and the frame is also significantly increased, which is unfavorable to the seismic safety of the converter valve structure.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2023-09-10
基金项目:中电工程科技项目:柔性直流换流站典型电气设备减隔震复合控制技术研究(DG2-T03-2022)
作者简介:朱东(1990-),男,硕士,工程师,研究方向为特高压变电站和换流站土建设计及建构筑物减隔震设计。
E-mail:1210003134@qq.com
更新日期/Last Update: 2023-12-30