Robust nonlinear speed control of PM synchronous motor using adaptive and sliding mode control techniques

Author

Baik, I.C. ; Kim, K.H. ; Youn, M.J.

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea

Volume

145

Issue

4

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

369

Lastpage

376

Abstract

A DSP-based nonlinear speed control of a permanent magnet synchronous motor (PMSM) which is robust to unknown parameter variations and speed measurement error is presented. The model reference adaptive system (MRAS) based adaptation mechanisms for the estimation of slowly varying parameters are derived using the Lyapunov stability theory. For the disturbances or quickly varying parameters, a quasilinearised and decoupled model including the influence of parameter variations and speed measurement error on the nonlinear speed control of a PMSM is derived. Based on this model, a boundary layer integral sliding mode controller to improve the robustness and performance of a PMSM drive is designed and compared with the conventional controller. To show the validity of the proposed control scheme, simulations and experimental work are carried out and compared with the conventional control scheme

Keywords

permanent magnet motors; DSP-based nonlinear speed control; Lyapunov stability theory; PM synchronous motor; adaptive control; boundary layer integral sliding mode controller; decoupled model; model reference adaptive system; quasilinearised model; robust nonlinear speed control; sliding mode control; slowly varying parameters estimation; speed measurement error;

fLanguage

English

Journal_Title

Electric Power Applications, IEE Proceedings -

Publisher

iet

ISSN

1350-2352

Type

jour

DOI

10.1049/ip-epa:19981646

Filename

707048