Rotor flux estimation method of bearingless induction motor based on stator current vector orientation

Author

Bu Wenshao ; Wang Shaojie ; Zu Conglin ; Zhai Lili

Author_Institution

Coll. of Electron. & Inf. Eng., Henan Univ. of Sci. & Technol., Luoyang, China

fYear

2012

fDate

15-17 Aug. 2012

Firstpage

437

Lastpage

441

Abstract

The key problem of rotor flux orientation control of bearingless induction motor is the estimation of rotor flux. Aiming at the problem that the estimation precision of rotor flux based on traditional flux estimator is influenced by the variation of stator or rotor resistance, a new estimation method based on the stator current vector orientation is proposed, which contains neither stator resistance nor rotor resistance, and the influence of stator and rotor resistance on estimation precision of rotor flux can be overcome. Matlab/Simulink simulation results have verified the validity of the presented estimator.

Keywords

induction motors; machine control; magnetic bearings; magnetic flux; magnetic variables control; rotors; bearingless induction motor; flux estimator; rotor flux estimation method; rotor flux orientation control; stator current vector orientation; Induction motors; Magnetic flux; Mathematical model; Resistance; Rotors; Stator windings; Bearingless Induction Motor; Rotor Flux; Stator Current Vector Orientation; Traditional Model;

fLanguage

English

Publisher

ieee

Conference_Titel

Automation and Logistics (ICAL), 2012 IEEE International Conference on

Conference_Location

Zhengzhou

ISSN

2161-8151

Print_ISBN

978-1-4673-0362-0

Electronic_ISBN

2161-8151

Type

conf

DOI

10.1109/ICAL.2012.6308226

Filename

6308226