地震作用下换流站回路设备耦联结构响应分析  

Analysis of Coupled Structural Responses of Circuit and Equipment in Converter Substation Under Seismic Action

作　　者：张世洪 姜渭鹏 王金雄 李光辉 ZHANG Shihong;JIANG Weipeng;WANG Jinxiong;LI Guanghui(CSG Extra High Voltage Power Transmission Company,Dali Bureau,Yunnan Dali 671000,China)

机构地区：[1]中国南方电网有限责任公司超高压输电公司大理局,云南大理671000

出　　处：《高压电器》2025年第4期83-90,共8页High Voltage Apparatus

摘　　要：地震作用对特高压换流站设备的影响十分显著,由于设备之间通过母线和其他部件相互连接,设备的耦联效应会显著改变其地震响应特性。以特高压换流站中的典型交流滤波器回路为研究对象,建立了精细化有限元模型,对耦联回路的动力学特性进行了模态分析与地震时程分析,探讨了不同地震动下设备和母线的耦联响应特性。研究表明,与单独设备相比,耦联回路中的设备表现出不同的动态特性,耦合效应对设备的位移和应力响应有显著影响,某些关键设备如电容器和断路器的位移与应力响应较大。基于分析结果,文中提出了具体的抗震设计建议,旨在减小耦合效应带来的不利影响,提升换流站设备的抗震性能与安全性。The impact of seismic action on ultra-high voltage(UHV)converter station equipment is significant.The coupling effect of equipment can greatly change their seismic response characteristics due to the connection between equipment via through busbar and other parts.The typical AC filter circuit in a UHV converter station is taken as an example,a refined finite element model is set up to perform the modal analysis for the dynamic characteristics of the coupled circuit and seismic time-history analysis.The coupling response characteristics of equipment and busbar un-der different seismic excitation are explored.The study shows that,compared to the individual equipment,the equip-ment in the coupled circuit exhibits different dynamic behaviors,and the coupling effect has significant influence on the displacement and stress responses of the equipment.The displacement and stress response of some such key com-ponents as capacitors and circuit breakers is bigger.Based on the analysis result,a specific seismic design recommen-dations are proposed in this paper so to mitigate the adverse influence of coupling effect and enhance the seismic per-formance and safety of equipment of converter station.

关 键 词：换流站 交流滤波器回路 耦联响应 数值模拟 地震响应分析 

分 类 号：TM721.1[电气工程—电力系统及自动化]