智能隔震结构控制算法Simulink仿真分析  

Study of Control Algorithm for Smart Isolated Structure Based on Simulink Simulation

作　　者：杜永峰[1] 刘彦辉[1] 李慧[1] 

机构地区：[1]兰州理工大学防震减灾研究所,甘肃兰州730050

出　　处：《系统仿真学报》2007年第18期4270-4273,4278,共5页Journal of System Simulation

基　　金：国家自然科学基金资助项目(50548016)

摘　　要：介绍了现有LQG控制算法特点,提出了基于全状态反馈的主动序列最优控制律,与现有LQG控制算法相比序列最优控制算法增益矩阵具有时变的特点。结合一栋五层基础隔震框架结构,对该两种控制方法在传感器正常工作时和染入噪声情况下的控制效果进行Simlink仿真分析,仿真结果表明序列最优控制算法的总体控制效果优于LQG控制算法,且序列最优控制算法具有良好的鲁棒性能。The characters of Linear Quadratic Gaussian （LQG） control algorithm were introduced and the active Sequential Optimal Control （SOC） algorithm was proposed based on the fuU states feedback. Compared with LQG control algorithm, the gain matrix in SOC control algorithm had the feature of time variation. A five-story base isolated building frame structure was used to evaluate the control effect in the case of sensor normal working and sensor contaminated with noise by Simlink simulation, Simulation results show that overall control effect of SOC is advantageous over that of LQG and SOC has good robustness.

关 键 词：控制算法 序列最优控制 LQG控制 鲁棒性 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]