Seismic Performance Assessment and Study of Wind-proof Reinforcement of ±800 kV DC Pole Line RI Capacitor Bank Based on Midas Gen

YANG Jiechun; ZHU Jiehong; MA Weiyong

doi:10.13296/j.1001-1609.hva.2025.04.016

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Seismic Performance Assessment and Study of Wind-proof Reinforcement of ±800 kV DC Pole Line RI Capacitor Bank Based on Midas Gen

Earthquake Disaster Mitigation and Emergency Responses of Substation System Under Extreme Conditions | 更新时间：2025-05-25

- Seismic Performance Assessment and Study of Wind-proof Reinforcement of ±800 kV DC Pole Line RI Capacitor Bank Based on Midas Gen
- High Voltage Apparatus Vol. 61, Issue 4, Pages: 139-149(2025)
- 作者机构：
  
  1.桂林电力电容器有限责任公司，广西　桂林　 541004
  2.桂林电子科技大学机电工程学院，广西　桂林　 541004
- 作者简介：
- 基金信息：
  
  Science and Technology Project of Guangxi Zhuang Autonomous Region(AD21220035)
- DOI：10.13296/j.1001-1609.hva.2025.04.016
  CLC：
- Received：16 November 2024，
  
  Revised：22 January 2025，
  
  Published：16 April 2025
- 稿件说明：
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YANG Jiechun, ZHU Jiehong, MA Weiyong. Seismic Performance Assessment and Study of Wind-proof Reinforcement of ±800 kV DC Pole Line RI Capacitor Bank Based on Midas Gen[J]. High voltage apparatus, 2025, 61(4): 139-149.
DOI：

YANG Jiechun, ZHU Jiehong, MA Weiyong. Seismic Performance Assessment and Study of Wind-proof Reinforcement of ±800 kV DC Pole Line RI Capacitor Bank Based on Midas Gen[J]. High voltage apparatus, 2025, 61(4): 139-149. DOI： 10.13296/j.1001-1609.hva.2025.04.016.

摘要

新疆地区高地震带强风沙环境条件对±800 kV直流极限RI电容器组的抗震和抗风性能影响较大，文中以新疆某特高压直流工程换流站±800 kV直流极限RI电容器组为研究对象，采用通用有限元软件Midas Gen进行有限元分析。首先定义材料和截面，建立±800 kV直流极限RI电容器组的Midas Gen模型，然后施加边界条件和载荷工况，仿真分析得到电容器塔架的模态、振型、应力和位移，结果表明±800 kV直流极线RI电容器组满足8度（0.2g）抗震要求。针对新疆地区强风沙环境对电容器塔架位移振动的影响，提出一种可以有效降低电容器塔架位移的防风加固措施，利用Midas Gen仿真结果表明防风加固措施对降低电容器塔架位移效果明显，为新疆地区高地震带强风沙环境条件下±800 kV直流极线RI电容器组的设计改进提供理论依据，确保特高压工程设备安全可靠运行。

Abstract

The high seismic zone and strong sandstorm environment in Xinjiang region has significant influence on the seismic and wind-proof performance of ±800 kV DC limit RI capacitor bank. In this paper

the±800 kV DC limit RI capacitor bank at a certain UHV DC converter station in Xinjiang is taken as the study object and the finite element analysis is performed by using the general finite element software Midas Gen. Firstly

the material and section are defined

and the Midas Gen model of the±800 kV DC limit RI capacitor bank is set up. Then

the boundary conditions and load cases are applied to obtain the modal

vibration mode

stress and displacement of the capacitor tower by simulation and analysis. The results show that the ±800 kV DC limit RI capacitor bank meets the seismic requirements of 8 degrees (0.2g). In view of the influence of the strong sandstorm environment on the displacement vibration of the capacitor tower in Xinjiang region

a windproof reinforcement measure which can effectively reduce the displacement of the capacitor tower is proposed. The simulation results of Midas Gen show that the windproof reinforcement measure has a significant effect on reducing the displacement of the capacitor tower

providing a theoretical basis for the design and improvement of the±800 kV DC limit RI capacitor bank under the high seismic zone and strong sandstorm environment conditions in Xinjiang region

and ensuring the safe and reliable operation of UHV engineering equipment.

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