Robust reduced-order controller synthesis: a dilated LMI approach

被引:3
作者
Sadeghzadeh, Arash [1 ]
机构
[1] Shahid Beheshti Univ, Fac Elect Engn, Tehran, Iran
关键词
reduced-order controller; dilated linear matrix inequality; H-2 and H-infinity control; polytopic system; OUTPUT-FEEDBACK CONTROL; H-INFINITY CONTROL; H-2; DESIGN; SYSTEMS;
D O I
10.1093/imamci/dnv055
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 develops a new method for the synthesis of robust reduced-order dynamic output feedback controllers for linear time-invariant systems. H-2 and H-infinity performance criteria are considered. The method is applicable for both discrete-time and continuous-time systems. The proposed method is based on recently developed extended or dilated linear matrix inequalities (LMIs). A new structure of the slack matrix variables is introduced to obtain an LMI relaxation for the non-convex robust reduced-order controller design problem. The uncertain time-invariant parameters belong to a polytopic domain and affect all the system matrices. Numerical examples demonstrate the effectiveness of the proposed approach.
引用
收藏
页码:479 / 499
页数:21
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