Feedforward and feedback optimal control for linear time-varying systems with persistent disturbances  

作　　者：唐功友 郑师 张宝琳 赵艳东 

机构地区：[1]College of Information Science and Engineering,Ocean University of China

出　　处：《Journal of Harbin Institute of Technology(New Series)》2007年第6期850-852,共3页哈尔滨工业大学学报（英文版）

基　　金：the National Natural Science Foundation of China (Grant No.60074001);the Natural Science Foundation of Shandong Province (Grant No.Y2000G02).

摘　　要：The optimal control problem was studied for linear time-varying systems,which was affected by external persistent disturbances with known dynamic characteristics but unknown initial conditions. To damp the effect of disturbances in an optimal fashion,we obtained a new feedforward and feedback optimal control law and gave the control algorithm by solving a Riccati differential equation and a matrix differential equation. Simulation results showed that the achieved optimal control law was realizable,efficient and robust to reject the external disturbances.The optimal control problem was studied for linear time-varying systems, which was affected by external persistent disturbances with known dynamic characteristics but unknown initial conditions. To damp the effect of disturbances in an optimal fashion, we obtained a new feedforward and feedback optimal control law and gave the control algorithm by solving a Riccati differential equation and a matrix differential equation. Simulation results showed that the achieved optimal control law was realizable, efficient and robust to reject the external disturbances.

关 键 词：linear time-varying systems persistent disturbances optimal control feedforward and feedback control 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]