A nonlinear reduced order observer for permanent magnet synchronous motors

Author

Solsona, J. ; Valla, M.I. ; Muravchik, C.

Author_Institution

LEICI, Univ. Nacional de La Plata, Argentina

Volume

1

fYear

1994

fDate

5-9 Sep 1994

Firstpage

38

Abstract

This paper introduces a nonlinear reduced order observer for speed and rotor position estimation in permanent magnet synchronous motors (PMSM). The observer is based on the model of the motor represented in the stationary two-axes coordinates. The theoretical principles of the proposed observer are discussed. Sufficient conditions for convergence as well as convergence speed are established. The observer is designed and tested by simulation. The results show that the observer gives a good estimation of speed and rotor position. In addition, it has low sensitivity to torque disturbances and perturbations of the mechanical parameters

Keywords

machine control; machine theory; observers; permanent magnet motors; rotors; synchronous motors; torque; convergence; low sensitivity; mechanical parameters perturbations; nonlinear reduced order observer; permanent magnet synchronous motors; rotor position estimation; simulation; speed estimation; stationary two-axes coordinates; torque disturbances; Control systems; Convergence; Error correction; Mechanical sensors; Mechanical variables control; Observers; Permanent magnet motors; Rotors; Synchronous motors; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control and Instrumentation, 1994. IECON '94., 20th International Conference on

Conference_Location

Bologna

Print_ISBN

0-7803-1328-3

Type

conf

DOI

10.1109/IECON.1994.397746

Filename

397746