A nonlinear reduced order observer for permanent magnet synchronous motors

Author

Solsona, Jorge ; Valla, María I. ; Muravchik, Carlos

Author_Institution

Lab. de Electron. Ind. Control e Instrum., Univ. Nacional de La Plata, Argentina

Volume

43

Issue

4

fYear

1996

fDate

8/1/1996 12:00:00 AM

Firstpage

492

Lastpage

497

Abstract

This paper introduces a nonlinear reduced order observer for speed and rotor position estimation in permanent magnet synchronous motors (PMSMs). The observer is based on a model of the motor represented by 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

control system analysis; control system synthesis; machine control; machine theory; nonlinear control systems; observers; parameter estimation; permanent magnet motors; position control; rotors; synchronous motors; velocity control; control design; control simulation; convergence; mechanical parameters; nonlinear reduced order observer; permanent magnet synchronous motors; perturbations; rotor position estimation; sensitivity; speed estimation; stationary two-axes coordinates; torque disturbances; Convergence; Observers; Permanent magnet motors; Phase estimation; Rotors; State estimation; Sufficient conditions; Synchronous motors; Testing; Torque;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.510641

Filename

510641