A robust scheme for indirect model reference adaptive control and its stability analysis

Author

Suzuki, Yoshiaki ; Itamiya, Keietsu ; Suzuki, Takashi

Author_Institution

Dept. of Electr. Eng., Nat. Defense Acad., Yokosuka, Japan

fYear

1999

fDate

Aug. 31 1999-Sept. 3 1999

Firstpage

1172

Lastpage

1177

Abstract

This paper presents a robust scheme for the indirect type of model reference adaptive control (MRAC) system, in the presence of unmodelled dynamics and measurement noise. This scheme is characterized by the use of adaptive law with dead zone and integral type of fixed compensator. Stability of the MRAC system is analyzed by employing the concept of L_2δ norm and the Bellman-Gronwall lemma, based on the properties guaranteed by the adaptive law. Effectiveness of the scheme is demonstrated by the simulation carried out for a plant with first order nominal part.

Keywords

compensation; control system synthesis; model reference adaptive control systems; robust control; stability; Bellman-Gronwall lemma; L_2δ norm concept; MRAC system; adaptive law; fixed compensator; indirect model reference adaptive control; robust scheme; stability analysis; Adaptation models; Adaptive control; Noise; Noise measurement; Polynomials; Robustness; Stability analysis; adaptive law with dead zone; fixed compensator; robust adaptive control; stability analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (ECC), 1999 European

Conference_Location

Karlsruhe

Print_ISBN

978-3-9524173-5-5

Type

conf

Filename

7099468