Independent parameterization of two-degree-of-freedom compensators in general robust tracking systems

Author

Hara, Shinji ; Sugie, Toshiharu

Author_Institution

Dept. of Control Eng., Tokyo Inst. of Technol., Japan

Volume

33

Issue

1

fYear

1988

fDate

1/1/1988 12:00:00 AM

Firstpage

59

Lastpage

67

Abstract

Consideration is given to a general robust tracking problem in which the controlled object is a linear multivariable system having measured variables that are not necessary coincident with the output variables to be controlled. A necessary and sufficient condition for the two-degree-of-freedom compensator to achieve a robust tracking system with internal stability is given. An existence condition is derived for such a compensator, and the class of all such compensators is parameterized, so that two specifications with respect to responses for reference commands and feedback properties can be satisfied independently by the two free parameters

Keywords

compensation; feedback; linear systems; multivariable control systems; stability; existence condition; feedback; internal stability; linear systems; multivariable system; robust tracking systems; two-degree-of-freedom compensators; Attenuation; Control system synthesis; Control systems; Feedback; MIMO; Robust control; Robust stability; Robustness; Steady-state; Sufficient conditions;

fLanguage

English

Journal_Title

Automatic Control, IEEE Transactions on

Publisher

ieee

ISSN

0018-9286

Type

jour

DOI

10.1109/9.361

Filename

361