Space Vector PWM Control of Dual Inverter Fed Open-End Winding Induction Motor Drive

AbstractThe technique of space vector PWM control of dual voltage source inverter fed three phase open-end winding induction motor is presented in this paper. A space vector PWM technique is developed based on the combination of space vectors from dual inverters feeding the induction motor from both ends (open-end winding without neutral point). A total of 64 voltage space vector combinations are available for PWM voltage control of the inverter fed machine with open-end winding A space phasor based PWM scheme is proposed with minimum number of switching in a cycle per inverter coupled with equal number of switching for each inverter. All the voltage space vector combinations are utilized for generating the reference voltage vector to cover the entire speed range. The open-end winding structure can have significant third harmonic currents unless suitable third harmonic filters are used to suppress it. The third harmonic currents are suppressed by using isolated transformers for both inverters.Key Words: space vector PWMopen - end winding induction motor drivedual 2-level inverter Additional informationNotes on contributorsE.G. ShivakumarE. G. Shivakumar received the B.E. degree in electrical engineering from Bangalore University in 1983. He received M. Tech. in electrical engineering from Indian Institute of Technology, Madras at Chennai in 1984. From 1984 to 1989, he was the design1 engineering in H.M.T. R&D, Bangalore. From 1989 to 1992, he worked with SKF Bearings as maintenance superintendent. From 1992 to 1995, he worked with Dayananda Sagar College of engineering as a senior lecturer. Since 1995, he has been with the University Visvesvaraya College of engineering as lecturer. Presently doing doctoral work at CEDT, Indian Iinstitute of Science, Bangalore-560 012, India.K. GopakumarK. Gopakumar received his B.E., M.Sc.(Engg) and Ph.D. from Indian Institute of Science in 1980, 1984 and 1994 respectively. He was with the Indian Space Research Organisation from 1984 to 1987. He is currently an Assistant Professor at CEDT(Centre for Electronics Design and Technology), Indian Institute of Science, Bangalore-560 012, India. His fields of interest are Power Converters, PWM techniques and AC Drives.[CEDT, Indian Institute of Science, Bangalore-560 012, INDIA]; e-mail: kgopa@cedt.iisc.ernet.inS.K. SinhaS.K.Sinha received his B.E. degree from PATNA University in 1967. He completed his M.E. and Ph.D. from EE Department, Indian Institute of Science, Bangalore-560 012 in 1979 and 1984 respectively. At present he is the Chairman of CSIC (Centre for Scientific and Industrial Consultancy), Indian Institute of Science. His fields of interest are in Power Converters and application of microprocessor based systems in Power Controls.Andre PittetAndre Pittet graduated in electronics engineering from the Swiss Federal Institute of Technology, Lausanne, in 1974. He received the Ph.D. degree from the same institute in 1980 for his research on single-phase micro-stepper motors. In 1980 he joined the Centre for Electronics Design and Technology at the Indian Institute of Science, Bangalore, India, as a visiting expert on deputation from the Swiss Agency for Development and Cooperation. Since then he worked in this center where he is now Chief Technical Advisor. He spent two sabbatical years in Quebec where he worked in the Industrial Electronics Research Group at the Universite du Quebec a Trois-Rivieres and at Teleuniversite, Montreal. His main technical interests are in the field of power electronics, motors and their control. He is also actively interested web-based learning and the issues of instructional design for higher technical education.V.T. RanganathanV.T.Ranganathan received his B.E. and M.E. degrees in Electrical Engineering from the Indian Institute of Science and the Ph.D. degree from Concordia University, Montreal, Canada. He joined the Electrical Engineering Department at I.I.Sc in 1984 and is currently a Professor. His research interests are in the area of Power Electronics and Motor Drives. He has published several papers in the areas of vector control of ac drives, pwm techniques, split phase induction motor drives and rotor side control of slip ring induction motors. He is also a consultant to industry in the above areas and has participated in a number of research and development projects.He has been a recipient of the Prize Paper Award of the IEEE-IAS Static Power Converter Committee, The Tata Rao Prize of the Institution of Engineers India, The VASVIK award in Electrical Sciences and Technology and the Bimal Bose Award of the Institution of Electronics and Telecommunication Engineers, India. He is a Fellow of The Institution of Engineers, India and a Senior Member of the IEEE.

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