The XY-centring algorithm for the dual LMI problem: A new approach to fixed-order control design

被引:95
作者
Iwasaki, T [1 ]
Skelton, RE [1 ]
机构
[1] PURDUE UNIV, SPACE SYST CONTROL LAB, W LAFAYETTE, IN 47907 USA
关键词
D O I
10.1080/00207179508921598
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Many fixed-order suboptimal control problems with stability, performance and robustness specifications can be reduced to a search for a matrix X > 0 satisfying a linear matrix inequality (LMI) while X(-1) satisfies another LMI. This paper defines a certain class of these problems we shall call the 'dual LMI problem', and a computational algorithm to solve our dual LMI problem is given. Properties and limitations of the algorithm are discussed in comparison with the existing algorithm (the min/max algorithm). An extension to optimal control problems is provided. Numerical examples for the fixed-order stabilization problem and the static output feedback linear quadratic optimal control problem demonstrate the applicability of the proposed algorithm.
引用
收藏
页码:1257 / 1272
页数:16
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