SECTION SAINT-MAURICE
Multilevel Inverter Topologies with Reduced DC Link
Voltages for Medium Voltage Drive Applications
Prof. K. Gopakumar, FIEEE, FIETE, FNAE
Distinguished Lecturer of the IEEE Industrial Electronics Society
Indian Institute of Science (I.I.Sc.), Bangalore, Karnataka, India
ABSTRACT/RÉSUMÉ
Recently, numerous interesting multilevel topologies have been reported for motor drive
applications. However, to date, the most popular topology is the neutral-point clamped (NPC)
three-level topology, especially for medium-voltage drives applications. This shows that the
industry is still looking for viable alternative to this topology, with reduced power circuit
complexity and increased reliability for medium-voltage drives applications. This specific lecture
will focus on some of the recent work from my lab on five-level and nine-level inverter
topologies, with reduced DC-link voltages along with common-mode voltage reduction for
conventional as well as open-ended winding induction motor drives. This is followed by some
recent work on multilevel topologies for drives, with a single DC -link, enabling
multilevel back-to-back inverter operation for medium voltage drives.
BIOGRAPHY/BIOGRAPHIE
Dr. K. Gopakumar received his B.E. (Electrical Engineering) degree from the Indian Institute
of Science (I.I.Sc.) in 1980. Later, he completed his M. Sc. (Engg.) (E.E.) in 1984 and Ph.D.
(E.E.) in 1994 both from I.I.Sc. Dr. Gopakumar is currently a Professor and Head of the
Department of Electronic Systems Engineering (DESE) – formerly known as the Centre for
Electronics Design and Technology (CEDT), at I.I.Sc., Bangalore, India. He is also affiliated
with the following professional societies: Fellow of the IEEE, Fellow of IETE (India), and
Fellow of the Indian National Academy of Engineers (NAE). He is the winner of the prestigious
IETE B. K. Bose Award for contributions to the area of power electronics and drives for high
power applications. He is a Distinguished Lecturer of the IEEE Industrial Electronics Society.
He also serves as an Associate Editor of the IEEE Transactions on Industrial Electronics.
Jeudi 12 mars 2014 – 14h00
Local 2506 LP – UQTR
Adel Omar DAHMANE
Président du chapitre
Communications Society
IEEE Section St-Maurice
Mamadou Lamine DOUMBIA
Responsable des activités éducationnelles
IEEE Section St-Maurice
Pierre SICARD
Président du chapitre PELS
IEEE Section St-Maurice