A new digital approach to design multivariable robust optimal control systems  

作　　者：刘翔 陈琳 孙优贤 

机构地区：[1]National Laboratory of Industrial Control Technology Zhejiang University

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2005年第7期707-710,共4页浙江大学学报（英文版）A辑（应用物理与工程）

基　　金：Project (No. 60274036) supported by the National Natural Science Foundation of China

摘　　要：This paper presents a new design of robust optimal controller for multivariable system. The row characteristic functions of a linear multivariable system and dynamic decoupling of its equivalent system, were applied to change the transfer function matrix of a closed-loop system into a normal function matrix, so that robust H^∞ optimal stability is guaranteed. Furthermore, for the decoupled equivalent control system the I^∞ optimization approach is used to have the closed-loop system embody optimal time domain indexes. A successful application on a heater control system verified the excellence of the new control scheme.This paper presents a new design of robust optimal controller for multivariable system. The row characteristic functions of a linear multivariable system and dynamic decoupling of its equivalent system, were applied to change the transfer function matrix of a closed-loop system into a normal function matrix, so that robustH∞ optimal stability is guaranteed. Furthermore,for the decoupled equivalent control system the l∞ optimization approach is used to have the closed-loop system embody optimal time domain indexes. A successful application on a heater control system verified the excellence of the new control scheme.

关 键 词：I^∞/H^∞ Dynamic decoupling Normal matrix Row characteristic function 

分 类 号：TP273.1[自动化与计算机技术—检测技术与自动化装置]