The simulation study of sensorless control for induction motor drives based on MRAS

Author

Li, Zicheng ; Cheng, Shanmei ; Cai, Kai

Author_Institution

Sch. of Electr. & Inf. Eng., Wuhan Inst. of Technol., Wuhan

fYear

2008

fDate

10-12 Oct. 2008

Firstpage

235

Lastpage

239

Abstract

A method of speed identification for sensorless induction motor (IM) drives based on a model reference adaptive system (MRAS) is proposed in this paper. The adaptive full-order observer based on IM equation is used to estimate stator currents and rotor flux. Lyapunovpsilas stability criterion is employed to estimate rotor speed. The same algorithm deduced from Lyapunovpsilas stability criterion is given to estimate the stator resistance, which results in the speed estimation error. The results of simulation show that the motor speed is controlled well at very low speeds. The proposed speed and stator resistance identification methods can be believed have high possibility in practical applications.

Keywords

Lyapunov methods; induction motor drives; machine control; model reference adaptive control systems; observers; stability; velocity measurement; Lyapunov stability criterion; adaptive full-order observer; induction motor drives; model reference adaptive system; rotor flux; sensorless control; sensorless induction motor; speed estimation error; Adaptive systems; Control systems; Electric resistance; Error correction; Estimation error; Induction motor drives; Induction motors; Rotors; Sensorless control; Stators;

fLanguage

English

Publisher

ieee

Conference_Titel

System Simulation and Scientific Computing, 2008. ICSC 2008. Asia Simulation Conference - 7th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-1786-5

Electronic_ISBN

978-1-4244-1787-2

Type

conf

DOI

10.1109/ASC-ICSC.2008.4675361

Filename

4675361