基于Midas Gen的±800 kV直流极线RI电容器组抗震性能评估及防风加固研究  

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

作　　者：杨结春 朱杰鸿 马维勇 YANG Jiechun;ZHU Jiehong;MA Weiyong(Guilin Power Capacitor Co.,Ltd,Guangxi Guilin 541004,China;School of Mechanical and Electrical Engineering,Guangxi Guilin University of Electronic Technology,Guangxi Guilin 541004,China)

机构地区：[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

出　　处：《高压电器》2025年第4期139-149,共11页High Voltage Apparatus

基　　金：广西科技计划项目(AD21220035)。

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MidasGen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。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 ele-ment 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 condi-tions 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 require-ments 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 dis-placement of the capacitor tower is proposed.The simulation results of Midas Gen show that the windproof reinforce-ment measure has a significant effect on reducing the displacement of the capacitor tower,providing a theoretical ba-sis 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 engineer-ing equipment.

关 键 词：Midas Gen 电容器塔架 抗震 风荷载 位移 有限元模型 

分 类 号：TM53[电气工程—电器]