Prof. Kumarkutti Gopakumar
Indian Institute of Science
Prof. K. Gopakumar received his B.E., M.Sc.(Eng.) and Ph.D. degrees from Indian Institute of Science, Bangalore INDIA. He was with the Indian Space Research Organization from 1984 to 1987. He is currently a Professor at DESE (Department of Electronic Systems Engineering), Indian Institute of Science, Bangalore, INDIA. He is a Fellow of Institution of Electrical and Telecommunication Engineers (IETE), India. Fellow of Indian National Academy of Engineers (INAE) and a Fellow of IEEE. He currently serves as a Co-Editor-in-Chief for IEEE Transactions on Industrial Electronics and also a distinguished lecturer for the IEEE Industrial Electronics society, since 2011. His fields of interest are Power Converters, PWM Techniques and AC Drives.
Title of Speech
High resolution multilevel voltage space vector structure generation for variable speed drives and grid-tied applications
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, nine-level inverter topologies and 17-level multilevel topologies, with reduced DC-link voltages, enabling multilevel back- to- back inverter operation for medium voltage drives. This is followed by some recent work on multilevel topologies, with stacked low voltage inverter cells, polygonal voltage space vector generation with dodecagonal, octadecagonal and 24-sided structures for variable speed drives applications.
Mr. Christian Karam
UBS AG, Singapore
Christian Karam is the Chief Information Security Officer for APAC as well as the global head of threat intelligence and vulnerability management at UBS AG. Christian oversees the bank’s threat management capabilities enabling the delivery, consumption, analysis and actioning of cyber threat intelligence to provide the bank with risk awareness to mitigate cyber threats and identify threat actors. Also, in his role, Christian conducts security research and excellence activities in thought leadership specifically in the areas of security and cybercrime.
Prior to joining UBS AG, Christian was the head of the cyber research laboratory and the lead cyber threat researcher at INTERPOL. Christian developed the activities in the fields of global cyber threat research, future trends analysis, cyber intelligence and R&D within the INTERPOL Global Complex for Innovation (IGCI). Prior to joining INTERPOL, Christian was an independent security researcher, penetration tester, and security consultant for several private sector firms.
Christian is a member and advisor to the INTERPOL Global Cybercrime Experts Group, a member of BlackHat’s review board, an advisor to RSA ESAF and an accomplished public speaker covering highly rated security conferences, governmental events and think tank forums.