Direct Torque Control Based on Shoot-Through States of an Induction Motor Fed by a Z-Source Three-Level Neutral Point Clamped Inverter

Abstract

This paper deals with an adaptive direct torque control of an induction motor fed by a Z-source three-level NPC (Neutral Point Clamped) inverter. The proposed control ensures simultaneously the buck-boost operation mode and the induction motor control. Indeed, a switching table, taking into account the Z-source structure, is developed for the direct torque control. In this context, shoot-through states of the Z-source three-level NPC inverter is applied in each sampling time of the direct torque control. The proposed system can be used as promising solution in event of sags voltage, improve power factor, and reduce harmonics. Experimental tests, carried out on digital development board, clearly demonstrate the feasibility and effectiveness of the proposed control.

KEYWORDS:

• Direct torque control
• Induction motor
• Shoot-through states
• Three-level NPC inverter
• Z-source inverter

Additional information

Notes on contributors

Sofiane Douida

Douida Sofiane received the BSc and MSc degrees in electrical engineering from the Polytechnic Military Academy, Algiers, Algeria, in 2007 and 2014, respectively. He is currently working toward the PhD in electrical engineering. Email: [email protected]

Bekheïra Tabbache

Bekheira Tabbache received the BSc and MSc and PhD degrees in electrical engineering from the Polytechnic Military Academy, Algiers, Algeria, in 2003, 2007, and 2013, respectively. Since 2004, he has been an assistant then an associate professor at the Electrical Engineering Department of the Polytechnic Military Academy, Algiers, Algeria. His current research interests are control of electrical drives, power electronics, and fault tolerant control. Corresponding author. Email: [email protected]

Mohamed Benbouzid

Mohamed El Hachemi Benbouzid received the BSc degree in electrical engineering from the University of Batna, in 1990, the MSc and PhD degrees in electrical and computer engineering from the National Polytechnic Institute of Grenoble, Grenoble, France, in 1991 and 1994, respectively, and the Habilitation à Diriger des Recherches degree from the University of Picardie “Jules Verne,” Amiens, France, in 2000. After receiving the PhD degree, he joined the Professional Institute of Amiens, University of Picardie “Jules Verne,” where he was an associate professor of electrical and computer engineering. In September 2004, he joined the University Institute of Technology of Brest, University of Brest, Brest, France, as a professor of electrical engineering. His research interests include the analysis, design, and control of electric machines; variable speed drives for traction, propulsion, and renewable energy applications; and fault diagnosis of electric machines. Email: [email protected]