Sliding mode pulse-width modulation technique for direct torque controlled induction motor drive

¹ Département d'Électrotechnique, Université de Chlef, BP 151, Hay Salem Chlef, 02000, Algeria
² Faculté de Génie Électrique, Université des Sciences et Technologie d'Oran, BP 1505, El-M'naouer, Oran, 31000, Algeria

Corresponding author: med_bounadja@yahoo.fr

Received: 28 July 2009
Revised: 22 December 2009
Accepted: 29 January 2010
Published online: 26 March 2010

Abstract

This paper presents a novel pulse-width modulation technique based sliding mode approach for direct torque control of an induction machine drive. Methodology begins with a sliding mode control of machine's torque and stator flux to generate the reference voltage vector and to reduce parameters sensitivity. Then, the switching control of the three-phase inverter is developed using sliding mode concept to make the system tracking reference voltage inputs. The main features of the proposed methodologies are the high tracking accuracy and the much easier implementation compared to the space vector modulation. Simulations are carried out to confirm the effectiveness of proposed control algorithms.