±800 kV平波电抗器抗震性能分析及减隔震措施

杨晓玲; 石高扬; 谢强

doi:10.16527/j.issn.1003-6954.20250510

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±800 kV平波电抗器抗震性能分析及减隔震措施

更新时间：2026-02-13

- ±800 kV平波电抗器抗震性能分析及减隔震措施
- Vol. 48, Issue 5, Pages: 71-78(2025)
- 作者机构：
  
  同济大学土木工程学院
- 作者简介：
- 基金信息：
- DOI：10.16527/j.issn.1003-6954.20250510
  CLC： TM47
- Published：2025
- 稿件说明：
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杨晓玲, 石高扬, 谢强. ±800 kV平波电抗器抗震性能分析及减隔震措施[J]. 2025, 48(5): 71-78.
DOI：

杨晓玲, 石高扬, 谢强. ±800 kV平波电抗器抗震性能分析及减隔震措施[J]. 2025, 48(5): 71-78. DOI： 10.16527/j.issn.1003-6954.20250510.

摘要

电气设备具有较高的地震易损性，平波电抗器作为重要电气设备之一，其结构质量较大、重心较高，在地震作用下支撑结构容易出现根部应力过大的现象。为研究其抗震性能，建立了±800 kV平波电抗器精细化有限元模型对其结构的动力特性以及地震响应进行分析，发现其支撑绝缘子端部动力响应较大且其支撑绝缘子根部应力无法满足抗震规范中安全系数的要求。因此提出了在每根支撑绝缘子底部单独设置钢丝绳阻尼器和弹簧阻尼结合的减隔震支座，并对减隔震前后的设备薄弱部位进行地震响应分析对比。结果表明设置减隔震支座后，支撑绝缘子端部动力响应有效降低且支撑绝缘子根部应力响应得到减小，满足抗震设计要求，所提方法可以有效地提高平波电抗器的抗震性能。

Abstract

Electrical equipment has a high seismic vulnerability. As one of the most important electrical equipment

the smoothing reactor has a large structural weight and a high center of gravity

making it prone to excessive root stress in the support structure during an earthquake. To study the seismic performance of smoothing reactor

a finite element model of a ±800 kV smoothing reactor is established

and its dynamic characteristics and seismic responses are analyzed. It is found that the dynamic response at the top of support insulator is large and the stress at the root of support insulator can not meet the requirements of safety factor in the seismic code. So

a seismic isolation system consisting of wire rope dampers and spring dampers is proposed to be installed separately at the bottom of each support insulator. The seismic responses of smoothing reactor

both with and without seismic isolation

are subsequently analyzed. The results show the dynamic responses at the top and the stress response at the bottom of support insulator are effectively reduced

which complies with seismic design standards

so the proposed method can significantly enhance the seismic performance of smoothing reactors.

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