Robust stability analysis by transformation of Youla parametrization

Author

Qiu Yuhuang ; Ji Hongbin

Author_Institution

Inst. of Autom., Acad. Sinica, Beijing, China

Volume

4

fYear

1993

fDate

19-21 Oct. 1993

Firstpage

486

Abstract

This paper addresses an alternative approach to analyse nominal and robust stability via Youla parametrization (1976). The parameter, Q, which is used to form all nominally stabilizing controllers, can then be interpreted as a feedback compensator in the transformed framework of this method. Thus, we can purposefully design the parameter Q to achieve H/sub /spl infin// optimal performance. In addition, the constructive procedure is provided to form the standard plant in the presence of uncertainties. The condition of robust stability is also obtained for the uncertain systems.<>

Keywords

H/sup /spl infin// control; compensation; control system analysis; control system synthesis; feedback; robust control; H/sub /spl infin// optimal performance; Youla parametrization; control design; feedback compensator; nominally stabilizing controllers; robust stability analysis; transformation; uncertain systems; Control systems; Feedback; Robust stability; Robustness; Uncertainty; Virtual manufacturing;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON '93. Proceedings. Computer, Communication, Control and Power Engineering.1993 IEEE Region 10 Conference on

Conference_Location

Beijing, China

Print_ISBN

0-7803-1233-3

Type

conf

DOI

10.1109/TENCON.1993.320537

Filename

320537