摘要
特高压换流变压器的抗震性能及最佳算法是困扰变压器行业的重要问题,常规抗震计算静力法虽然简单省时但在模拟实际地震过程上差别较大,因此换流变的抗震响应谱法仿真分析具有重要意义。本文采用AC1050kV/DC400kV换流变,基于IEEE-693抗震标准,建立了特高压换流变的抗震仿真三维模型,在Creo-simulation平台上进行抗震响应谱仿真分析,然后合成三坐标方向的仿真结果 ,最终获得了换流变的振型和在地震作用下的应力分布和位移,其结果为换流变与基础固定的地脚螺栓设计提供了数据支撑,指明了换流变特别是套管升高座部分的基频位于卓越频率范围之内容易引起共振,为换流变的外部结构设计(如油箱,升高座,储油柜支撑,冷却器支撑)提供数值计算结果以便做进一步的结构改进,计算了阀侧套管顶部的最大位移为相关配合设计提供参考。
The seismic performance and optimal algorithm of UHV converter transformer are important problems in transformer industry.Although the conventional seismic static method is simple and time-saving,it is quite different in simulating the actual earthquake process.Therefore,the seismic response spectrum method simulation analysis of converter transformer is significant.In this paper,the converter AC1050kV/DC400kV is modeled and implemented the seismic response spectrum analysis on the Creo-simulation platform based on IEEE-693 American seismic standard,and then the simulation results in the three-dimensional direction are synthesized.Finally,the vibration modes,stress distribution and deformation under earthquake are obtained.The results provide the data support for the design of anchor bolts which fix the converter on the base;point out the base frequency of converter especially dome-bushing system is in the predominant frequency range and easy to cause resonance in the earthquake;provides the numerical calculation for converter external structure(such as tank,dome,conservator support,cooler support)to do the structure improvement;calculate the maximum displacement of the top of the valve side bushing to provide reference for the relevant design.
作者
鲁金波
付洪军
刘洪飞
李林达
刘虹
迟主升
LU Jin-bo;FU Hong-jun;LIU Hong-fei;LI Lin-da;LIU Hong;CHI Zhu-sheng(Guangzhou SIEMENS Energy Transformer Co.,Ltd.,Guangzhou 510530,China)
出处
《变压器》
2023年第8期30-35,共6页
Transformer
关键词
特高压换流变
响应谱法
固有频率
振型
应力分布
位移
UHV converter transformer
Response spectrum method
Natural frequency
Vibration mode
Stress distribution
Displacement
