MRAS based Speed Control of sensorless Induction Motor Drives

S.Meziane, R.Toufouti, H.Benalla

Department of Electrical Engineering, Constantine University Aîn el bey Road Constantine Algeria

Abstract

Senseless induction motor drives are widely used in industry for their reliability and flexibility, particularly in hostile environment. However, the performance of many of previously developed observer based speed sensors in very low speeds of IM drives was not satisfactory. In this paper we present two types of MRAS based speed estimators, one based on the rotor flux and the other based on the back EMF. The estimated speed is used as feedback in a vector control system. The MRAS approach has the immediate advantage in that the model is simple, presents the theory, modelling and this method because eliminates the produced error in the speed adaptation, is more stable and robust. Simulation results of the proposed MRAS speed observer based sensorless field-oriented induction motor drives. The performances of both techniques are evaluated in indirect vector control system and the results are presented.

 Keywords: Sensorless induction motor, model reference adaptive system (MRAS), speed estimator.

(P1110710001, 749 KB)

Biographies:

	Meziane Salima: was born in Oum El Bouaghi, Algeria, in 1974, in 2000 received the Engineer degree from the University of Montouri Constantine. Algeria. In 2003 received the M.S. degrees in electrical engineering, Option electrical machine. Associate teacher in Oum El Bouaghi University from October to 2003. In 2004 inscription in doctor's degree, permanent teacher from October 2004 in Souk ahras University, member for laboratory Of Electrical engineering university Constantine. Algeria.
	Toufouti Riad: was born in Constantine, Algeria, in 1974, in 1999 received the Engineer degree from the university of Montouri Constantine. Algeria. In 2003 received the M.S. degrees in electrical engineering, Option electrical machine. Associate teacher in Constantine University from October 1999 to 2003. In 2003 inscription in doctor's degree, permanent teacher from January 2004 in Souk ahras University, member for laboratory Of Electrical engineering university Constantine. Algeria
	Hocine Benalla: was born in Algeria in 1957. He received the D.E.A. and Doctor engineer degree in power electronics from the National Polytechnic Institute of Toulouse, France, in 1981 , and. 1984, respectively. In 1995, he received the Ph.D. degrees in electrical engineering from University of Jussieu -Paris 6, France. He is currently an Assistant Professor at University of Constantine Algeria. His current research interests include electric machines, ac drives and active filter.

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