Improvements on VSS-type self-tuning control for a tracking controller

Author

Lee, Pan-Mook ; Oh, Jun-Ho

Author_Institution

Ocean Eng. Div., Korea Res. Inst. of Ships & Ocean Eng., Taejon, South Korea

Volume

45

Issue

2

fYear

1998

fDate

4/1/1998 12:00:00 AM

Firstpage

319

Lastpage

325

Abstract

This paper points out that the VSS-type self-tuning controller of K. Furuta (see ibid., vol.40, p.37-44, 1993) can be improved by modifications of the sector with separate gains and the equivalent control algorithm. The controlled system is stable in the outside of the sector and ultimately bounded in the inside of the sector. The proposed VSS-type self-tuning controller prevents the fluctuation of the estimated parameters that can occur during the parameter adaptation. This controller, having reduced the switching sector, is actually applicable to the tracking control of discrete systems in the presence of parameter uncertainties

Keywords

adaptive control; control system synthesis; parameter estimation; self-adjusting systems; tracking; variable structure systems; VSS-type self-tuning control; adaptive control; discrete time systems; equivalent control algorithm; estimated parameters fluctuation; parameter adaptation; parameter estimation; parameter uncertainties; self-tuning controller; switching sector reduction; tracking control; tracking controller; Control systems; Electric variables control; Error correction; Parameter estimation; Power system dynamics; Robust control; Sampling methods; Sliding mode control; Uncertainty; Variable structure systems;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.681231

Filename

681231