Intelligent Sliding-Mode Control Using RBFN for Magnetic Levitation System

Author

Lin, Faa-Jeng ; Teng, Li-Tao ; Shieh, Po-Huang

Author_Institution

Dept. of Electr. Eng., Nat. Dong Hwa Univ., Hualien

Volume

54

Issue

3

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

1752

Lastpage

1762

Abstract

An intelligent sliding-mode control system using a radial basis function network (SMCRBFN) is proposed to control the position of a levitated object of a magnetic levitation system to compensate the uncertainties including the friction force in this study. First, the dynamic model of the magnetic levitation system is derived. Then, a sliding-mode approach is proposed to compensate the uncertainties that occurred in the magnetic levitation system. Moreover, to relax the requirement of uncertainty bound in the design of a traditional sliding-mode control system and further increase the robustness of the magnetic levitation system, a radial basis function network estimator is proposed to estimate the uncertainties of the system dynamics online. The effectiveness of the proposed control scheme is verified by some experimental results. With the proposed SMCRBFN system, the position of the levitated object of the magnetic levitation system possesses the advantages of good transient control performance and robustness to uncertainties for tracking periodic trajectories

Keywords

intelligent control; magnetic levitation; position control; power engineering computing; radial basis function networks; variable structure systems; SMCRBFN; dynamic model; intelligent sliding-mode control; magnetic levitation system; position control; radial basis function network; transient control performance; Control systems; Force control; Intelligent control; Intelligent networks; Intelligent systems; Magnetic levitation; Radial basis function networks; Robust control; Sliding mode control; Uncertainty; Magnetic levitation; radial basis function network (RBFN); sliding-mode control (SMC);

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2007.894710

Filename

4200882