Keynotes

ISIE 2020 offers keynote speeches by distinguished researchers.

Frede Blaabjerg (Aalborg University, Denmark)

Title: Power electronics — the key technology for grid integration

Bio: Frede Blaabjerg (S’86–M’88–SM’97–F’03) was with ABB-Scandia, Randers, Denmark, from 1987 to 1988. From 1988 to 1992, he got the PhD degree in Electrical Engineering at Aalborg University in 1995. He became an Assistant Professor in 1992, an Associate Professor in 1996, and a Full Professor of power electronics and drives in 1998. From 2017 he became a Villum Investigator. He is honoris causa at University Politehnica Timisoara (UPT), Romania and Tallinn Technical University (TTU) in Estonia.

His current research interests include power electronics and its applications such as in wind turbines, PV systems, reliability, harmonics and adjustable speed drives. He has published more than 600 journal papers in the fields of power electronics and its applications. He is the co-author of four monographs and editor of ten books in power electronics and its applications.

He has received 32 IEEE Prize Paper Awards, the IEEE PELS Distinguished Service Award in 2009, the EPE-PEMC Council Award in 2010, the IEEE William E. Newell Power Electronics Award 2014, the Villum Kann Rasmussen Research Award 2014, the Global Energy Prize in 2019 and the 2020 IEEE Edison Medal. He was the Editor-in-Chief of the IEEE TRANSACTIONS ON POWER ELECTRONICS from 2006 to 2012. He has been Distinguished Lecturer for the IEEE Power Electronics Society from 2005 to 2007 and for the IEEE Industry Applications Society from 2010 to 2011 as well as 2017 to 2018. In 2019-2020 he serves as President of IEEE Power Electronics Society. He is Vice-President of the Danish Academy of Technical Sciences too. He is nominated in 2014-2019 by Thomson Reuters to be between the most 250 cited researchers in Engineering in the world.

Abstract: The energy paradigms in many countries (e.g., Germany and Denmark) have experienced a significant change from fossil-based resources to clean renewables (e.g., wind turbines and photovoltaics) in the past few decades. The scenario of highly penetrated renewables is going to be further enhanced– Denmark expects to be 100 percent fossil-free by 2050. Consequently, it is required that the production, distribution and use of the energy should be as technologically efficient as possible and incentives to save energy at the end-user should also be strengthened. In order to realize the transition smoothly and effectively, energy conversion systems, currently based on power electronics technology, will again play an essential role in this energy paradigm shift. Using highly efficient power electronics in power generation, power transmission/distribution and end-user application, together with advanced control solutions, can pave the way for renewable energies. In light of this, some of the most emerging renewable energies — , e.g., wind energy and photovoltaic, which by means of power electronics are changing character as a major part in the electricity generation —, are explored in this paper. Issues like technology development, implementation, power converter technologies, control of the systems, and synchronization are addressed. Special focuses are paid on the future trends in power electronics for those systems like how to lower the cost of energy and to develop emerging power devices and better reliability tool.

Claudio Cañizares (University of Waterloo, Canada)

Title: Energy Storage - Overview and Research

Bio: Dr. Claudio Cañizares is a Full Professor and the Hydro One Endowed Chair at the Electrical and Computer Engineering (E&CE) Department of the University of Waterloo, where he has held various academic and administrative positions since 1993. He received the Electrical Engineer degree from the Escuela Politécnica Nacional (EPN) in Quito-Ecuador in 1984, where he held different academic and administrative positions between 1983 and 1993, and his MSc (1988) and PhD (1991) degrees in Electrical Engineering are from the University of Wisconsin-Madison. His research activities focus on the study of stability, control, optimization, modeling, simulation, and computational issues in bulk power systems, microgrids, and energy systems in the context of competitive energy markets and smart grids. In these areas, he has led or been an integral part of many grants and contracts from government agencies and private companies, and has collaborated with various industry and university researchers in Canada and abroad, supervising/co-supervising a large number of research fellows and graduate students. He has authored/co-authored many highly cited journal and conference papers, as well as several technical reports, book chapters, disclosures and patents, and has been invited to make multiple keynote speeches, seminars, and presentations at numerous institutions and conferences worldwide. He is a Fellow of the Institute of Electrical & Electronic Engineering (IEEE), as well as a Fellow of the Royal Society of Canada, where he is currently the Director of the Applied Science and Engineering Division of the Academy of Science, and a Fellow of the Canadian Academy of Engineering. He is also the recipient of the 2017 IEEE Power & Energy Society (PES) Outstanding Power Engineering Educator Award, the 2016 IEEE Canada Electric Power Medal, and of various IEEE PES Technical Council and Committee awards and recognitions, holding leadership positions in several IEEE-PES Technical Committees, Working Groups and Task Forces.

Abstract: As the penetration of renewable generation increases in power systems, issues such as grid stiffness, larger frequency deviations, and grid stability are becoming more relevant. In this context, Energy Storage Systems (ESSs) are proving to be effective in facilitating the integration of renewable resources, and thus are being widely deployed in both microgrids and large power grids. This talk will review several energy storage technologies, particularly Compress Air Energy Storage (CAES), flywheels, thermal energy storage and batteries, and their modeling and applications for power systems. An overview will be provided of the work being carried out by Prof. Canizares’ group at the University of Waterloo on all these energy storage systems, focusing on novel models and applications in microgrids and transmission grids for system stability and control, in particular for frequency regulation.

Thomas M. Jahns (University of Wisconsin - Madison, USA)

Title:Electrified Aircraft: Is Industrial Power Electronics Ready for Takeoff?

Bio: Thomas M. Jahns (S’73–M’79–SM’91–F’93–LF’18) received his bachelors, masters, and PhD degrees in electrical engineering from the Massachusetts Institute of Technology (MIT) in Cambridge, Massachusetts USA. In 1998, he joined the Department of Electrical and Computer Engineering at the University of Wisconsin-Madison as a Grainger Professor of Power Electronics and Electric Machines. He is currently the Director of the Wisconsin Electric Machines and Power Electronics Consortium (WEMPEC), North America’s largest industry-academic partnership focused on advanced research in the areas of electric machines and adjustable-speed drives.

Prior to joining UW, Dr. Jahns worked for 15 years at GE Corporate Research and Development (now the GE Global Research Center) in Niskayuna, New York, where he pioneered the development of high-performance interior permanent magnet (IPM) machines and drives that are now the dominant machine drive technology used in production passenger electric vehicles. From 1996 to 1998, he conducted a research sabbatical at MIT, where he directed research activities in the area of advanced automotive electrical systems and accessories as Co-Director of an industry-sponsored automotive consortium. His current research interests include high-performance aircraft propulsion motor drives, integrated motor drives using current-source inverters, and distributed energy systems for the future electric grid designed with grid-forming inverters.

Dr. Jahns is a Fellow of IEEE and a Past President of the IEEE Power Electronics Society (PELS). He served two years as the elected Division II Director on the IEEE Board of Directors. Dr. Jahns received the 2005 IEEE Nikola Tesla Technical Field Award and the IEEE Industry Applications Society Outstanding Achievement Award in 2011. He was elected as a member of the US National Academy of Engineering in 2015.

Abstract: Aviation is in the early stages of a technological revolution that is leading to progressively increasing levels of electrification of the propulsion systems for aircraft of all types and sizes. This trend is being driven by the increasingly urgent need to dramatically reduce the greenhouse gas emissions of commercial aircraft.

Longer-term success of this electrification initiative depends on the ability of future aircraft propulsion systems to displace conventional jet engines with lightweight electrical machines and inverters. There are major development activities under way around the world that are pushing the limits of all-electric propulsion systems for both small and large aircraft.

This presentation focuses attention on both the promise and limitations of today’s industrial power electronics and motor drives for contributing to the electrification of future aircraft propulsion systems. On the promising side, researchers are competing to raise the specific power density values of electric machines to values exceeding 15 kW/kg (including housing). Wide-bandgap power semiconductors offer great potential for reducing the volume and mass of future power converters, encouraging the development of integrated machine drive systems.

However, major challenges still remain. Temperature extremes, vibration, and partial discharge at high altitudes limit the ability of conventional industrial power electronics to meet the ultra-high reliability requirements of aerospace equipment. Despite all of the impressive progress to date, much work lies ahead to realize the full potential of electrified aircraft propulsion systems.