Analysis of the chosen speed and flux estimators for sensorless induction motor drive

Author

Tarchala, Grzegorz ; Dybkowski, Mateusz ; Orlowska-Kowalska, Teresa

Author_Institution

Inst. of Electr. Machines, Drives & Meas., Wroclaw Univ. of Technol., Wroclaw, Poland

fYear

2011

fDate

27-30 June 2011

Firstpage

525

Lastpage

530

Abstract

In the paper chosen rotor flux and speed estimation methods for the speed sensorless induction motor drive are presented. Speed estimators based on: the sliding mode theory (SMO), model reference adaptive systems (MRAS) technique and two chosen concepts based directly on the rotor slip frequency calculation are discussed and compared. Stator flux and speed estimators sensitivity to the motor parameter uncertainties is investigated. Simulation and experimental results of the sensorless DTC-SVM without speed control loop are presented. The low speed region and the dynamic properties of the IM drive with electromagnetic torque and stator flux feedbacks are tested.

Keywords

angular velocity control; induction motor drives; model reference adaptive control systems; rotors; sensorless machine control; stators; torque; variable structure systems; electromagnetic torque; flux estimators; model reference adaptive systems; rotor flux; rotor slip frequency calculation; sensorless induction motor drive; sliding mode theory; speed control loop; speed estimation; stator flux feedbacks; Induction motors; Mathematical model; Observers; Rotors; Stators; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics (ISIE), 2011 IEEE International Symposium on

Conference_Location

Gdansk

ISSN

Pending

Print_ISBN

978-1-4244-9310-4

Electronic_ISBN

Pending

Type

conf

DOI

10.1109/ISIE.2011.5984213

Filename

5984213