Assoc. Prof. Jelena Popovic received the Dipl. Ing. degree from the Faculty of Electrical Engineering, University of Belgrade, Belgrade, Serbia, in 2001, and the Ph.D. degree from the Delft University of Technology, Delft, The Netherlands, in 2005. From 2005 to 2011, she was with the European Center for Power Electronics (ECPE) as a Technology Transfer Coordinator. From 2008 to 2017 she was with the Delft University of Technology as an Assistant Professor. In 2018 she co-founded a start-up in energy access, Klimop Energy. From October 2019, she joined University of Twente as an Associate Professor to develop a multidisciplinary research and education Energy Access programme.
She has published over 90 publications in scientific journals, magazines and conferences. She has co-authored strategic research agendas, technology roadmaps and white papers in the field of power electronics, energy efficiency, solid state lighting. Her recent interests are bottom-up solutions for energy access, appropriate technology and socio-technical integration. She is the vice-chair of the PELS Technical Committee TC-12 Energy Access.
Energy Access – challenges and opportunities for the power electronics community
Abstract – Achieving universal, affordable and sustainable energy access to almost 1 billion people without electricity access is one of the biggest societal challenges of our time. Decentralised, bottom-up approaches, such as solar home systems and microgrids, are being deployed as an alternative to the centralised grid approach, however affordability, reaching scale and long-term sustainability remain challenging. The lecture will discuss the role and opportunity for the power electronics community in addressing these challenges. Furthermore, it will throw a spotlight on the second round of the IEEE PELS challenge Empower a Billion Lives.
Assist.Prof. Minjie Chen
Andlinger Center for Energy and the Environment
Princeton, New Jersey, USA
Minjie Chen is an Assistant Professor of Electrical Engineering and Andlinger Center for Energy and the Environment at Princeton University. He leads the Princeton Power Electronics Research Lab. He received the B.S degree from Tsinghua University in 2009, and the Ph.D degree from MIT in 2015. His research interests include high frequency power electronics, advanced power electronics architectures, power magnetics, and the design of high-performance power electronics for emerging and important applications. He is a recipient of the NSF CAREER Award, two IEEE Transactions Prize Paper Awards, a COMPEL best paper award, the outstanding Ph.D. thesis award from MIT, and many other awards from the IEEE Power Electronics Society. He has published over 40 papers in journals and conferences and holds 4 issued patents.
He is the Vice Chair of PELS-TC10-Design Methodologies, an Associate Editor of the IEEE Transactions on Power Electronics and IEEE Journal of Emerging and Selected Topics in Power Electronics, the Associate Technical Program Committee Chair of ECCE 2019, and the Technical Program Committee Chair of ICDCM 2021.
Managing Power Complexity for Extreme Performance: Circuit, Architecture, and Magnetics
Abstract – Power electronics have been traditionally designed with topologies that have low component count and simple architecture.
These designs typically require substantial energy storage and bulky passive components, and are reaching their fundamental limits with decreasing performance gains. Moreover, they do not leverage the dramatic advances that have been made in semiconductor materials and integrated circuits. With the advent of wide-bandgap semiconductor materials, high-frequency magnetics, and the opportunities offered by emerging high-impact applications, sophisticated and modularized power conversion architectures are becoming extremely attractive.
This talk will present three on-going efforts about high complexity power electronics, ranging from point-of-load power converter design, differential power processing architecture, to magnetics core loss modeling based on machine learning. These three examples extend the fundamental performance boundary of power electronics from three different perspectives, and enlighten the path to much more sophisticated and modularized power electronics that will benefit a wide range of applications.
Kevin Hermanns is founder and managing director of PE-Systems GmbH. PE-Systems offers solutions in the field of design automation for power electronics including automated characterization and device modelling. Before becoming an entrepreneur, Kevin started his professional career at Siemens in the project office of large-scale railway automation projects. Afterwards, he worked as a research associate at the Technical University of Darmstadt in the Power Electronics Department. During this time, his research interests focused mainly on the distortions of high-power converters. He actively contributed to Cigre working group B4.67, which resulted in the technical brochure “AC side harmonics and appropriate limits for VSC HVDC”. He is also an active participant in national and international standardization committees (e.g. IEC and CENELEC). As of this year Kevin is chair of the newly formed IEEE Power Electronics Society Technical Committee on Design Methodologies. As such, he sees his role as promoting the use of novel design methodologies. In particular, he focuses on the interaction between design tools and test and measurement techniques.
Kevin was born 1984 in Germany. He received his bachelor’s degree in electrical engineering from the Technical University of Braunschweig, Germany and graduated from the same university with a Master of Science in electrical power engineering.
Component Data - The Key to Unleash the Potential of Design Automation for Power Electronics
Abstract – A variety of decisions must be taken during the design process of power electronics.
Increasing system complexity due to new semiconductor technologies (SiC, GaN), innovative manufacturing methods and various fields of application make it impossible.
For system designers to grasp all variation of possible solutions. The designed system normally fits the requirements but is never the optimal solution.
To overcome this, design automation in power electronics is currently evolving from academical examples to industrial applications, solutions and products.
The basis of design automation is the generation, processing and the provision of data, which describes components and systems.
The obvious way is to collect component data from each vendor and build up one centralized data base for each software tool, that helps to solve one certain issue during the design process.
This way seems not to be the optimal way, because data must be provided for each tool by each component vendor. Additionally, each software tool vendor is responsible to keep the data up to date and will have different requirements on the applied data.
A better way is to use standardization to define a basic data set and to empower component vendors to make their product data available in machine-readable formats.
The realization of a standard data format as well as several application examples, improving the design process of power electronics significantly, are presented in this keynote.
Academician Slobodan Vukosavić
University of Belgrade and
Serbian Academy of Sciences and Arts
Faculty of Electrical Electric Engineering
Slobodan N. Vukosavic
graduated with honours at the Electrical Engineering Department, University of Belgrade. He got his diploma in Power engineering in 1985, and his diploma in Electronics in 1986. He defended the magisterial thesis entitled "Control algorithms for the voltage source inverters" in 1987.The doctoral dissertation "Adaptive digital control of induction motors" is defended 1989. with the same University.
Since 1985, he worked as an R/D engineer with "Nikola Tesla" Institute in Belgrade, engaged with research, development and design of static power converters, electrical drives and digital control systems for industrial and military applications. Relevant projects were closely related with his magisterial thesis, PhD thesis, and his first papers. In 1988, he joined Electronic Speed Control Division of Emerson-Electric in St. Louis, where he developed and patented sensorless controller for brushless permanent magnet motors in HVAC applications. He also developed asymmetrical switched reluctance machines and original power converter topology for SRM supply. Invited by Vickers-Electric, manufacturer of hydraulic actuators, he joined their new R/D team, developing electric actuators for industrial robots. Leading the R/D with Vickers Electric, and later on with MOOG-Electric, he developed motion control products for the car manufacturers and automotive industry in Europe.
He started teaching at the Electrical Engineering Department, University of Belgrade part-time in 1993. and full time from 1995. He was elected associate professor in 1998. and full professor in 2003. In 2003, he was elected adjunct professor at the North Eastern University, Boston. In cooperation with Imperial College, London, he developed a new curriculum in Mechatronics. He established two R/D laboratories: Laboratory for digital control of electrical drives and Laboratory for electrical vehicles. In cooperation with other universities and companies, the laboratories completed 13 international and 20 national R/D projects. He mentored 74 diploma thesis, 17 magisterial thesis, 12 master thesis and 12 PhD thesis.
He conducted research and design of motion control algorithms, servo-amplifiers and servo motors for production automation and industrial robots. As the team leader in R/D departments of Vickers-Electric and Moog, he conducted design and deployment of motion control solutions and several original methods and devices. Developments include one of the first multi-axis servo-amplifiers with proprietary algorithms for the suppression of the mechanical resonance and torsional oscillations, the algorithms for trajectory optimization and the control laws that reduce the losses and increase the energy efficiency. His motion control products and devices are mainly used at European car manufacturers, accounting for more than 80.000 servo axis. Large power, high reliability servo-amplifiers developed in cooperation with Moog are widely used for running the flight simulators and high-pressure injection molding machines.
S. N. Vukosavic published over 250 papers, 50 of them in journals on JCRlist. He wrote 10 books, including DigitalControlofElectricalDrives, "电机" (Electrical motors), ElectricalMachines and Grid-Side Converters Design and Control published by Springer. According to Scopus, his papers were cited 2127 times(excluding self citations)with h = 27.
S. N. Vukosavic is an associate member of the Serbian Academy ofSciences and Arts. He is also a member of Academy of Engineering Sciences of Serbia and Senior member of the IEEE and member of Atiner institute for education and research.
He is associate editor of IET Electric Power Applications, of IEEE Transactions on Energy Conversion, member of editorial board and guest editor of international journal Electronics, member of editorial board of international journal Facta Universitatis: Electronics and Energetics.
S. N. Vukosavic is member of program boards of InternationalSymposiumonIndustrialElectronics(INDEL) and International Symposium on Power Electronics. He is also member of the Advisory Editorial Board of International Journal of Electrical Power & Energy Systems.
Abstract – Stability and reliability of power systems with increased share of renewable sources depends on dynamic properties of grid-side converters, power electronics devices that interface the ac grod with renewable sources, storage facilities, direct-current transmission lines, as well as with active loads, prosumers and microgrids. While the basic dynamic properties of synchronous generators depend on electromagnetic and mechanical properties of the machine, dynamics of grid-side converters prevalently depend on DSC-implemented control algorithms which depend on the converter topology, the switching frequency and which require exact information on grid parameters. This lecture will discuss converter topologies, improvements of semiconductor power switches and the algorithms for control and for evaluation of network parameters. In addition to theoretical considerations, the lecture will consider experimental results obtained with industrial samples of grid-side converters.
Prof. Huai Wang
Center of Reliable Power Electronics
Huai Wang Huai Wang is currently Professor at the Center of Reliable Power Electronics (CORPE) at Aalborg University, Denmark. His research addresses the fundamental challenges in modelling and validation of power electronic component failure mechanisms, and application issues in system-level predictability, condition monitoring, circuit architecture, and robustness design. He also leads a project on light-AI for cognitive power electronics. His team collaborates with various industry companies across the value chain, from power electronic materials, components to systems. Prof. Wang lectures three short-term Industrial/PhD courses on Reliability of Power Electronic Systems, Design FMEA in Power Electronics, and Capacitors in Power Electronics Applications at Aalborg University. He has contributed more than 120 journal papers and co-edited a book on the Reliability of Power Electronic Converter Systems in 2015. He has given 25 tutorials at leading power electronics conferences (e.g., PCIM Europe, APEC, ECCE, etc.) and more than 80 invited talks.
Prof. Wang received his PhD degree from the City University of Hong Kong, Hong Kong, China, and B. E. degree from the Huazhong University of Science and Technology, Wuhan, China. He was a short-term visiting scientist with the Massachusetts Institute of Technology (MIT), USA, and ETH Zurich, Switzerland. He was with the ABB Corporate Research Center, Baden, Switzerland, in 2009. Dr. Wang received the Richard M. Bass Outstanding Young Power Electronics Engineer Award from the IEEE Power Electronics Society in 2016 for the contribution to reliability of power electronic converter systems. He serves as General Chair of IEEE IFEC 2020 and Associate Editor of IEEE Transactions on Power Electronics.
AI Applications for Power Electronics – Challenges and Opportunities
Abstract – The applications of Artificial Intelligence (AI) for power electronics have been increasingly reported since the 1990s. This first part of this talk will revisit the research and development in the last three decades with selected application examples in the design, control, and condition monitoring of power electronic converters. The AI-based or AI-assisted solutions rely on in-depth understandings of the defined engineering problems, deterministic physical models, uncertainty analyses, data collection methods, and affordable AI algorithms and hardware platforms. The second part of this talk will share perspectives on the specific challenges and opportunities in AI for power electronics compared to other known application areas.
Academician Prof. Dr. Leo Lorenz
ECPE/Infineon and the German Academy of Science
LEO LORENZ received the M.Eng. degree from Univ. of Berlin Germany in 1976 and the PhD. degree (first class Hons.) from University of Munich in 1984 (Germany).
He is currently Technology Advisor for several Research Institutions , Board Member of key Power Electronics Conferences and President of ECPE. From 1988 to 1998 he was Senior Director at Siemens responsible for Power Semiconductor Devices in Automotive & Industrial Application. From 1998 to 2012 he served as Senior Principle in Application and Concept Engineering for all power semiconductor Technologies in Munich/Singapore/Shanghai. In this field he has published more than 400 Journal/conference papers with a high citation rate and is the owner of many basic patents. He gave more than 90 key note presentations at high level Summits and Conferences.
Beside his work in Industry he is a Honorable/Adjunct Professor at several Universities in Germany and Worldwide . In this function he provides courses on power semiconductor technologies and supervised more than 20 PhD Students.
Dr. Lorenz is one of the Key Founder of ECPE (European Center of Power Electronics) and since the foundation in 2003 President of this organization. He is Founder/Co-founder of several conferences such as CIPS (Conference on Integrated Power Systems), PCIM Asia, ISPSD, etc. He served as General Chair of several Conferences e.g. CIPS since 2005, EPE 2005, ISPSD 1997, PCIM since 2001 and is in the Advisory Board of all of these Conferences. Dr. Lorenz received several times the best paper Award at IEEE Conferences. In 1996, 98 and 99 he received the Siemens Innovation Award and from the German Industry Society the Innovation Award in 2002.
Beside these he received several high level IEEE Awards e.g. IEEE-ISPSD Outstanding Contributory Award in 2010 (Japan), the IEEE- Gerald Kliman Innovator Award in 2011 (USA) and the IEEE- William E. Newell Power Electronics Award in 2012 (USA), Ernst Blickle Award in 2015 (Germany), Sun Yun-Suan Honorary Professorship from Nat. Tsing Hua University TW in 2016 and a Dr. Honoris Causa nomination in 2017, Honorary Prof . Xi-An Jiaotong Univ.2018, IEEE Hall of Fame 2018
He is a distinguished lecturer at several Universities since 2003. He owns an IEEE- Fellowship since 2006 and is a Member of German Academy of Science since 2005. Dr. Lorenz is in the Advisory Board of several Research Institutions e.g. Fraunhofer Institute, Robert Bosch Center, etc. and a Technology Advisor/Reviewer of Governmental Organizations and Funding Programs.
Power Semiconductor Devices - Development Trend and Application Challenges will Silicon be replaced by WB-Technologies?
Abstract – Having a look at the ITRS (lnternational Technology Roadmap for Semiconductors) it can be seen that since the middle of the 90ties power semiconductors are not any more pure technology driven devices such as memory products. The feature size is having a minor influence on the performance improvement. The major improvement in electrical performance is coming from the overall Silicon utilization (vertical- & horizontal optimization). Based on this idea the technology Roadmap follows a chip horizontal optimization e.g. smaller feature size is translated into higher cell densities and a vertical optimization to minimize the drift layer and reduce the bulk substrate material significantly. This power device main stream technology development is applied to all device types such as the lGBT, Fast Recovery Diode, Super Junction Transistor low voltage MOSFET and WBG Devices.
However it has to be considered that the new generation of power dies having a smaller chip volume. A smaller chip volume translates into higher switching speed, extremely high knowledge for chip design is required as well as application engineering to operate the devices in short-circuit, avalanche and how to optimize the thermal management. To improve the cooling performance and reliability of the device new chip interfacing technologies have been developed.
The megatrends of our modern society such as energy efficiency, E-Mobility and Renewable Energy Technologies are asking for green power Electronic solutions. Power semiconductor devices are an enabling technology to meet these requirements. The major electrical improvement of the new generation of power devices is coming from SMART chip design based on more than 40 years dedicated experience. The reliability and ruggedness of these new power semiconductors is driven by an advanced chip silicon design and new interfacing and packaging technology. For ultra high efficiency and ultra high power density system solutions WB-devices are being developed. However it has to be considered that the application engineer is faced with new challenges of how to manage all the parasitic , the thermal management and the circuit design.
In the presentation the development trend of Power Devices will be shown and the challenges in packaging technologies and system application will be discussed. Advanced devices structures will be highlighted and their impact on the electrical and thermal performance outlined.
is the Chief Scientist of the recently founded br.ai.ns Institute (officially: The Institute for Artificial Intelligence Research and Development of Serbia), a part-time professor at the Faculty of Technical Sciences at the University of Novi Sad, and a scientist at Nvidia, working on visual perception algorithms and related processor architectures in the context of autonomous driving. He is also a passionate teacher of mathematically gifted kids, preparing them for math and physics olympiads through the AwesomeMath Academy and Summer Programs. Branislav has published five books on control theory and computer vision, four books for math and physics competitors, and was a guest editor for six special issues of leading computer vision journals.
Abstract – In this keynote we start on the funny side of AI, examining AI naming schemes that often magnificently collide with other engineering and scientific disciplines – “transformers” being only one of them. We continue into a no less entertaining discipline of predicting where AI is going. But history is a good teacher, so we methodically review where AI has been and what it has achieved, to conclude that it is currently where chemistry was when it was called alchemy, or perhaps a more appropriate analogy for this meeting, where electrical engineering was when Oersted discovered there was something going on between electricity and magnetism. In other words, there is a lot of work and many discoveries ahead of us!