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Medium Voltage Power Electronics Research: Challenges and Opportunities

Date: 03/07/2024
Time: 11:00 am
Presenter: Drazen Dujic
Abstract: Many high-power applications require medium voltage conversion solutions and performing research activities at university, in this domain, has its challenges. Modular converter structures, such as Modular Multilevel Converters or many variants of Solid-State Transformers, are receiving great attention from researchers, but are generally suited for high voltage high power applications. Designing these conversion systems, without scaling them down is associated with multiple technical challenges related to electrical, magnetic, dielectric, and thermal as well as with control hardware and performance limits. Various technological choices must be carefully considered and adequately selected before being included in multi-objective optimization on a system level. Suitable equipment, space, and safety considerations must be available to successfully carry out research in the domain. The webinar will address practical experiences from the Power Electronics Laboratory at EPFL, in managing medium voltage research projects, through several illustrative examples from past projects.
Drazen Dujic is an Associate Professor and Head of the Power Electronics Laboratory at EPFL. He received the Dipl.Ing. and MSc degrees from the University of Novi Sad, Novi Sad, Serbia in 2002 and 2005, respectively, and the PhD degree from Liverpool John Moores University, Liverpool, UK in 2008. From 2003 to 2006, he was a Research Assistant with the Faculty of Technical Sciences at the University of Novi Sad. From 2006 to 2009, he was a Research Associate with Liverpool John Moores University. After that, he moved to industry and joined ABB Switzerland Ltd, where from 2009 to 2013, he was a Scientist and then Principal Scientist with ABB Corporate Research Center in Baden-Dättwil, and from 2013 to 2014 he was R&D Platform Manager with ABB Medium Voltage Drives in Turgi. He has been with EPFL since 2014. His research interests include the areas of design and control of advanced high-power electronic systems and high-performance drives, predominantly for medium voltage applications related to electrical energy generation, conversion, and storage. In 2018 he received the EPE Outstanding Service Award and in 2014, the Isao Takahashi Power Electronics Award for Outstanding Achievement in Power Electronics. He is a Senior Member of IEEE, EPE Member, and serves as Associate Editor for IEEE Transactions on Power Electronics.