Space Vector Pulse Width Modulated Voltage Source Inverter Fed Induction Motor Drive using Fuzzy Logic Controller

Abstract

Direct self-controlled (DSC) induction motor drive employs sequence switching of space voltage vectors to pulse width modulated inverter. It has sluggish response during start up. The trajectory of stator flux and current is not a smooth circle. A novel fuzzy logic controller (FLC) based space vector pulse width modulated inverter fed induction motor drive is proposed in this paper. Here, FLC is used to select space voltage vectors for the PWM period based on torque error, stator flux error and stator flux position. The trajectory pattern of the stator flux vector, in a field co-ordinate system, can be improved by FLC. The machine's dynamic performance during starting is also improved by this method. The simulation results of the proposed scheme are presented in this paper.

Indexing terms:

• DSC
• Induction motor
• Space voltage vectors
• Pulse width modulated inverter
• Fuzzy logic controller

Additional information

Notes on contributors

S K Mandal

Soumitra Kumar Mandal was born in Howrah, India, on June 7, 1971. He graduated from the Bengal Engineering College, Howrah, Calcutta University in 1993 and M Tech from Banaras Hindu University, Varanasi in 1998. Presently, he is doing PhD from Punjab University. He joined PEC, Chandigarh in March, 1999. Since then he has been working as lecturer in department of electrical engineering. His research interests on application of fuzzy logic, ANN in electrical drives, and Power electronics.

Gurnam Singh

Gurnam Singh received his BE, ME and PhD degrees in Electrical Engineering from Punjab Engineering College of Punjab University, Chandigarh, India. He is a Professor of Electrical Engineering at his almamator. He developed a variety of computer intensive courses for Electrical Engineering including Programming methodology using C, Digital systems and microprocessor, Real-time systems. He has held the position of Professor-in-charge of undergraduate studies. Currently he is Professor-in-charge of Postgraduate studies in Electrical Engineering. At the institute level he is working as dean of Research and Technology Transfer. He is a consultant to a number of electric utilities and industry in India. His current interests are VLSI Circuits, Systems and Applications of ANN, Real Time Systems. He is a member of IEEE Computer Soc., PES Soc., Edu Soc and Power Electronics Soc. He is also a member of ACM and Fellow of IETE (India).