Constrained linear systems with hard constraints and disturbances: An extended command governor with large domain of attraction

被引:62
作者
Gilbert, Elmer G. [2 ]
Ong, Chong-Jin [1 ,3 ]
机构
[1] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore
[2] Univ Michigan, Dept Aerosp Engn, Ann Arbor, MI 48109 USA
[3] Singapore MIT Alliance, Singapore 117576, Singapore
关键词
Command governor; Reference governor; Hard constraints; Disturbance input; Domain of attraction; Robust invariant set; Constrained systems with disturbances; PREDICTIVE CONTROL; NONLINEAR CONTROL; STATE;
D O I
10.1016/j.automatica.2010.10.016
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper considers a nonlinear feedback control policy that is an extension of those provided by command governors and reference governors. As in these control approaches it applies to discrete-time linear systems with hard constraints and set bounded disturbances. The control policy retains the main properties of traditional governors, such as straightforward direct implementation and finite-settling-time response to arbitrarily specified set points. Its principal advantage over traditional governors is a significantly larger domain of attraction, that may compete in size with those obtained by dynamic programming. Connections to model predictive control are made. Numerical examples illustrate advantageous features of the proposed approach. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:334 / 340
页数:7
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