Optimal decentralized control of large scale systems

被引：2

作者：

Shi X.Q. ^{[1
]}

Davison D.E. ^{[2
]}

Kwong R. ^{[1
]}

Davison E.J. ^{[1
]}

机构：

[1] Systems Control Group, Department of Electrical and Computer Engineering, University of Toronto, Toronto, M5S 3G4, ON

[2] Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, N2L 3G1, ON

来源：

Control Theory and Technology | 2016年 / 14卷 / 04期

关键词：

Decentralized control; flexible structures; large-scale systems; multivariable control; optimization; PID control; robustness;

D O I：

10.1007/s11768-016-6091-9

中图分类号：

学科分类号：

摘要：

This paper presents a new optimized decentralized controller design method for solving the tracking and disturbance rejection problems for large-scale linear time-invariant systems, using only low-order decentralized controllers. To illustrate the type of results which can be obtained using the new optimized decentralized control design method, the control of a large flexible space structure is studied and compared with the standard centralized LQR-observer controller. The order of the resultant decentralized controller is much smaller than that of the standard centralized LQR-observer controller. The proposed controller also has certain fail-safe properties and, in addition, it can be five orders of magnitude more robust than the standard LQR-observer controller based on their real stability radii. The new decentralized controller design method is applied to a large flexible space structure system with 5 inputs and 5 outputs and of order 24. © 2016, South China University of Technology, Academy of Mathematics and Systems Science, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg.

引用

页码：287 / 313

页数：26

共 20 条

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