《电力勘测设计》杂志社有限公司

某300 MW级压缩空气储能电站作为研发示范工程，空气压缩机组采用框架基础，为掌握高低频组合多扰力作用下框架基础的动力性能，本文采用速度和位移双响应控制标准，基于柱底固结和弹性地基有限元模型开展基础的模态分析和振动响应分析。结果表明：300 MW压缩空气储能电站空气压缩机组基础具有良好的动力性能，振动速度峰值和振动位移峰值均满足我国规范限值要求；以柱底固结模型进行计算指导结构设计是偏于安全的，但在评估高低频组合扰力作用的基础动力性能时，应考虑地基刚度的影响。研究成果可为高低频组合扰力作用的动力机器基础设计及相关工程应用提供参考。

As a research and development demonstration project,a 300 MW compressed air storage power station uses a frame foundation for air compressor units.In order to evaluate the dynamic performance of the frame foundation affected by high and low frequency combined excitation,the modal analysis and vibration response analysis for the foundation based on the finite element model considering and not considering the influence of foundation stiffness are conducted and the response control standard of velocity and displacement is adopted.The results showed that the rigid frame foundation of the 300 MW air compressor unit has good dynamic performance.The peak vibration velocity and the peak vibration displacement meet the limit requirements of Chinese regulations.Using the finite element analysis model with fixed ends can conservative guide structural design,but the influence of foundation stiffness should be considered when evaluating the dynamic performance of the foundation forced high and low frequency disturbance.The research results can provide reference for the design of power machine foundations and related engineering applications under high and low frequency combined disturbance effects.