DocumentCode
2253826
Title
Optimal controllers are fragile
Author
Afolabi, Dare
Author_Institution
Dept. of Mech. Eng., Indiana Univ., Indianapolis, IN, USA
Volume
6
fYear
2003
fDate
4-6 June 2003
Firstpage
5306
Abstract
Optimal controllers are structurally unstable. The instability is intrinsic because of constrained optimization. This kind of instability is sometimes identified with "fragility" in the control literature. The fragility is related to hidden degeneracies in the polynomials and matrices of the optimized systems, and may detected by looking for certain catastrophe fingerprints.
Keywords
control system synthesis; matrix algebra; optimal control; optimisation; polynomials; stability; catastrophe fingerprints; constrained optimization; control literature; fragility; hidden degeneracies; instability; matrices; optimal controllers; optimized systems; polynomials; Closed loop systems; Constraint optimization; Control systems; Control theory; Fingerprint recognition; Mechanical engineering; Optimal control; Polynomials; Stability; Structural engineering;
fLanguage
English
Publisher
ieee
Conference_Titel
American Control Conference, 2003. Proceedings of the 2003
ISSN
0743-1619
Print_ISBN
0-7803-7896-2
Type
conf
DOI
10.1109/ACC.2003.1242571
Filename
1242571
Link To Document