基于迭代控制的电液振动台控制系统  

Shaking Table Servo Hydraulic Control System Based on Iterative Learning Control

作　　者：刘一江[1] 周惠蒙[2] 彭楚武[1] 李轶[1] 

机构地区：[1]湖南大学省重点实验室结构损伤诊断中心,湖南长沙410082 [2]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090

出　　处：《控制工程》2009年第5期543-546,617,共5页Control Engineering of China

基　　金：国家自然科学基金资助项目(50338020)

摘　　要：针对地震模拟振动台改造的需要,应用迭代学习控制理论,在振动台作动器位移PID控制的基础上构建外部加速度闭环,组成双闭环控制。采用Matlab进行了仿真,验证了算法的正确性和适用性。进行了控制系统软硬件的改造和开发,设计了简易的试验构件,通过大量的离线迭代实验,达到了理想控制效果,验证了改造后控制系统的性能。并进行了在线实时迭代学习控制的探索和多次试验。该研究对地震模拟振动台试验研究有重要意义。To the need of improving of the shaking table, the iterative learning control theory is employed, and outer acceleration closed loop is constructed to form the double closed loop based on the displacement PID control of actor of the shaking table. Matlab is adopted for simulation testify to the applicability and validity of this algorithm. The software and hardware of the control system are modified and developed. The simple experimental specimen is designed to achieve the satisfactory control effects. The experiments of the online and real-time iterative learning control show the performance of the modified system, which makes the contributions to the study on shaking table test.

关 键 词：地震模拟振动台 电液伺服控制 迭代学习算法 MATLAB 

分 类 号：TP271[自动化与计算机技术—检测技术与自动化装置]