基于粘滞阻尼器的柔性直流背靠背阀厅消能减震分析

Energy Dissipation Analysis of Flexible DC Back-to-Back Valve Hall Based on Viscous Fluid Damper

本文以某柔性直流背靠背阀厅为研究对象,结合规范规定对阀厅的抗震性能目标提出要求。以抗震设防烈度8度(0.30g)作为地震输入条件,分别对采用钢支撑和粘滞阻尼器的阀厅结构进行地震响应分析,研究不同抗震方案下阀厅结构的抗震性能。研究结果表明:阀厅采用粘滞阻尼器方案,在为结构提供良好的耗能效果和降低地震加速度响应峰值的同时,具有良好的经济指标。

The valve hall in aflexible DC back-to-back converter station is taken as the research object.Combined with the code,the objective requirements for the seismic performance of the valve hall are proposed.The seismic fortification intensity of 8 degree(0.30g)is taken as the seismic input condition,the seismic analysis of the valve hall is carried out with steel supports and viscousfluid dampers.And the seismic performances of these two different seismic schemes are studied.The results show that the schemes of viscousfluid damper can provide good energy dissipation effect for the valve hall,reduce the peak value of seismic acceleration response,and it has good economic benefit.