A BLDCM servo system using a variable structure controller with an adaptive switching slope

Author

Lee, C.K. ; Kwok, N.M.

Author_Institution

Dept. of Electron. Eng., Hong Kong Polytech., Hung Hom, Hong Kong

Volume

2

fYear

1995

fDate

18-22 Jun 1995

Firstpage

1352

Abstract

This paper presents a study of a brushless DC motor (BLDCM) servo system using a variable structure controller (VSC). This method keeps a small slope of switching surface at the early control stage and gradually increases it as the tracking error decreases when the system approaches the steady state. In such a way, the method enhances the inherent robustness of the VSC system by reducing its sensitivity to disturbances as the duration of the reaching phase is reduced. Results from simulations on the BLDCM servo system are included to illustrate the effectiveness of the proposed method

Keywords

adaptive control; brushless DC motors; control system analysis; control system synthesis; machine control; machine theory; robust control; servomotors; variable structure systems; brushless DC motor; control design; disturbance sensitivity; reaching phase duration; robustness; servomotors; simulation; switching surface; tracking error; variable structure controller; Adaptive control; Brushless DC motors; Control systems; DC motors; Electric variables control; Programmable control; Pulse width modulation; Servomechanisms; Stator windings; Synchronous motors;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1995. PESC '95 Record., 26th Annual IEEE

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-2730-6

Type

conf

DOI

10.1109/PESC.1995.474990

Filename

474990