Fragility and robustness puzzles

Author

Mäkilä, P.M.

Author_Institution

Autom. & Control Inst., Tampere Univ. of Technol., Finland

Volume

4

fYear

1999

fDate

1999

Firstpage

2914

Abstract

Several important open problem areas, or puzzles, in robust, control and modelling are highlighted. The first puzzle deals with complications caused by the fragile nature of poles and zeros in standard parameterizations of systems due to unavoidable small parameter inaccuracies. This includes also a critique of the debate paper of Keel and Bhattacharyya (1997). The second and the third puzzle are concerned with difficulties in generalizing H_∞ control theory to realistic persistent signal setups. It seems difficult to generalize the theory to such setups and simultaneously keep the terminology robust H _∞ control intact. These puzzles have implications for control-oriented model validation

Keywords

H^∞ control; modelling; poles and zeros; robust control; H_∞ control theory; control-oriented model validation; fragility; realistic persistent signal setups; robustness puzzles; small parameter inaccuracies; standard parameterizations; Automatic control; Automation; Books; Control systems; Control theory; Explosions; Poles and zeros; Robust control; Robustness; Terminology;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 1999. Proceedings of the 1999

Conference_Location

San Diego, CA

ISSN

0743-1619

Print_ISBN

0-7803-4990-3

Type

conf

DOI

10.1109/ACC.1999.786607

Filename

786607