A Nearly Constant Switching Frequency Current Error Space Vector Based Hysteresis Controller for an IM Drive with 12-Sided Polygonal Voltage Space Vectors

Abstract

In this paper, a current error space vector (CESV) based hysteresis controller for a 12-sided polygonal voltage space vector inverter fed induction motor (IM) drive is proposed, for the first time. An open-end winding configuration is used for the induction motor. The proposed controller uses parabolic boundary with generalized vector selection logic for all sectors. The drive scheme is first studied with a space vector based PWM (SVPWM) control and from this the current error space phasor boundary is obtained. This current error space phasor boundary is approximated with four parabolas and then the system is run with space phasor based hysteresis PWM controller by limiting the CESV within the parabolic boundary. The proposed controller has increased modulation range, absence of 5th and 7th order harmonics for the entire modulation range, nearly constant switching frequency, fast dynamic response with smooth transition to the over modulation region and a simple controller implementation.

Additional information

Notes on contributors

Najath Abdul Azeez

Najath Abdul Azeez received the B.Tech degree from National Institute of Technology, Calicut, India in 2003 and the M.Tech degree from the Indian Institute of Science, Bangalore, India in 2008. He is currently working towards the Doctoral degree in Department of Electronic Systems Engineering, Indian Institute of Science, Bangalore, India. His research interests are in the areas of power converters and drives.

Anubrata Dey

Anubrata Dey received the B.E. degree in electrical engineering from Jalpaiguri Govt. Engineering College, Jalpaiguri, India, in 2002, M.E. degree in control system from Bengal Engineering and Science University, Kolkata, India, in 2005. From 2006 to 2008 he was employed at the Indian Space Research Organisation, Bangalore, India, and from 2008 to 2009 at the GE India Technology Centre Pvt. Ltd., Bangalore, India. He is currently working toward the Ph.D.degree at the Department of Electronic Systems Engineering, Indian Institute of Science, Bangalore, India. His fields of interest include FWM techniques for multilevel inverter fed drives and its control.

K. Mathew

K. Mathew received the B.E. degree in electronics and communication engineering from K.V.G Engineering College, Mangalore, India in 1994, and the M.Tech degree in electronic design from Centre for Electronics Design and Technology, Indian Institute Of Science, Bangalore, India in 2006. He is a Member of the faculty with the Department of Electronics Engineering, M.A College Of Engineering, Kothamangalam, India. He is currently working toward the Ph.D. degree at the Department of Electronic Systems Engineering, Indian Institute of Science, Bangalore, India. His research interests include embedded systems, power electronics, and electro mechanic systems.

Jaison Mathew

Jaison Mathew received his B.Tech degree in Electrical Engineering from Rajiv Gandhi Institute of Technology Kottayam, India in 1998 and M.Tech degree in Power Systems from College of Engineering Trivandrum, India in 2001. He is a faculty with the Department of Electrical Engineering, Rajiv Gandhi Institute of Technology Kottayam and is currently working towards Ph.D degree at Department of Electronic Systems Engineering, Indian institute of Science, Bangalore. His research interests include power converters, motor drives and power quality.

K. Gopakumar

K. Gopakumar received the B.E., M.Sc. (Engg.), and Ph.D. degrees from the Indian Institute of Science, Bangalore, India, in 1980, 1984, and 1994, respectively. He was with the Indian Space Research Organization, Bangalore, India from 1984 to 1987. He is currently hold position of chairman and professor at the Department of Electronic Systems Engineering, Indian Institute of Science. Dr. Gopakumar is a Fellow of Institution of Electrical and Telecommunication Engineers, India and Indian National Academy of Engineers. He is currently an Associate Editor of IEEE Transaction on Industrial Electronics. His research interests include PWM converters and high power drives.