Adaptive flux observer for induction machines with on-line estimation of stator and rotor resistances

Author

Savoia, A. ; Verrelli, Cristiano Maria ; Mengoni, Michele ; Zarri, Luca ; Tani, A. ; Casadei, Domenico

Author_Institution

Univ. of Bologna, Bologna, Italy

fYear

2012

fDate

4-6 Sept. 2012

Abstract

A nonlinear adaptive control algorithm is proposed for induction machines. It is based on a two time-scale observer that allows the on-line identification of three critical uncertain parameters, i.e., load torque and motor stator and rotor resistances. In addition, the set-point of the rotor flux is adjusted in order to minimize the Joule losses and to improve the power efficiency. Experimental results illustrate the feasibility of the developed approach.

Keywords

adaptive control; asynchronous machines; machine control; nonlinear control systems; rotors; stators; Joule losses; adaptive flux observer; induction machines; motor rotor resistance; motor stator resistance; nonlinear adaptive control algorithm; online estimation; power efficiency; rotor flux; time-scale observer; Induction motors; Observers; Resistance; Rotors; Stator windings; Torque; Induction motor drives; adaptive observers; parameter identifiers; two-time-scales identification;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (EPE/PEMC), 2012 15th International

Conference_Location

Novi Sad

Print_ISBN

978-1-4673-1970-6

Electronic_ISBN

978-1-4673-1971-3

Type

conf

DOI

10.1109/EPEPEMC.2012.6397507

Filename

6397507