Adaptive performance improvement in a robust control system

Author

Maki, Midori ; Hagino, Kojiro

Author_Institution

Dept. of Syst. Eng., Univ. of Electro-Communications, Tokyo, Japan

Volume

2

fYear

2001

fDate

2001

Firstpage

1547

Abstract

We develop an adaptive robust control law for linear systems with norm-bounded parameter uncertainties, which forms linear interpolation of a linear quadratic optimal control for the nominal system and a guaranteed cost control. The interpolation coefficient is tuned, based on the online information about the size of actual parameter uncertainties. The proposed control scheme overcomes the disadvantage of a linear robust control with a fixed gain in the sense that transient performance could be improved

Keywords

adaptive control; cost optimal control; interpolation; linear quadratic control; linear systems; robust control; uncertain systems; adaptive performance improvement; adaptive robust control law; guaranteed cost control; interpolation coefficient; linear interpolation; linear quadratic optimal control; linear systems; nominal system; norm-bounded parameter uncertainties; online information; parameter uncertainties; robust control system; transient performance; Adaptive control; Control systems; Cost function; Interpolation; Linear systems; Optimal control; Performance gain; Programmable control; Robust control; Uncertain systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 2001. Proceedings of the 40th IEEE Conference on

Conference_Location

Orlando, FL

Print_ISBN

0-7803-7061-9

Type

conf

DOI

10.1109/.2001.981115

Filename

981115