The podcast you’ve been waiting for: “Sound on. Power on.”, powered by PCIM Europe, will take you on a journey through the world of power electronics. Host Prof. Marco Jung joins global leaders to provide you with fresh thoughts on the power electronics industry in snackable 20 minutes episodes.
„Future Challenges for Magnetics in Power Electronics“ with Prof. Dr.-Ing. habil. Peter Zacharias, University of Kassel
Magnetic materials have a special role to play in opening the bottlenecks in achieving higher power densities, higher frequencies, and smaller and lighter components for electrical power supply systems.
This involves exploring new materials, new ways of combining materials, and new form factors. The results can stretch the specifications - such as frequencies up to the 10s of MHz - and reduce the challenges of cooling requirements, and skin and proximity effects, as well as the handling of resonant frequencies and the variety of fluxes in multifrequency components.
Listen to the fascinating conversation between Prof. Marco Jung and Prof. Peter Zacharias, Head of the Department for Electrical Power Supply Systems at Kassel University, in episode 5 of the"Sound On. Power On." podcast.
Peter Zacharias (M'06) received the Dipl.-Ing. (1979) and Dr.-Ing. degrees (1986) in electrical engineering from Otto von Guericke University Magdeburg, Germany.
In 1983/1984, he did postdoctoral research in the field of power laser technology at the Polytechnic Institute in Kiev. Until 1990, he was lecturer for power electronics at the University of Magdeburg.
From 1990 to 1995 he worked with Lambda Physik GmbH in Göttingen. In 1995, he moved to the Institute for Solar Energy Technology (ISET) in Kassel and 2001 to eupec GmbH in Warstein, Germany.
Since 2005 he is full professor of electrical power supply systems at Kassel University. Since January 2009, he is heading the Competence Center for Distributed Electrical Power Systems (KDEE), which focuses on high-efficiency power converters for industrial and public applications of renewable energy sources. His work focuses on power electronic energy converters and their control as well as inductive components as bottlenecks for achieving high energy densities.
"Trends in switch-mode power supplies – how far we've come" with Dr. Peter Wallmeier, Delta Energy Systems (Germany) GmbH
The efficiency of switch-mode power supplies impacts energy use, from the consumption of the smart-phones in our pockets, to the photovoltaics powering our grids. Pushing that efficiency beyond today's 98% has an important role to play in fighting climate change - and energy costs. While the last 40 years have brought many advances in semiconductors, there is an increasing need for investment to improve the capabilities and properties of magnetic materials too.
Prof. Marco Jung talks to Dr. Peter Wallmeier, Senior Director R&D at Delta Energy Systems, about the issues in episode 4 of the"Sound On. Power On." podcast.
They also discuss the important opportunity presented by the combination of reactive loading, renewable power sources and storage in alleviating the voltage and frequency deviations that result from the increasing stresses on our modern, complex and interconnected power grids.
Dr. Peter Wallmeier got his Master / PhD degree in Electrical Engineering at the University of Paderborn in 1994 / 2000. Until 1995 he was EMC Engineer at ZIAM GmbH and until 2000 research assistant at the Institute of Power Electronics and Electrical Drives of the University of Paderborn.
In 2000 he joined Eupec GmbH, today Infineon, as Power Module Project Engineer and in 2001 ASCOM-today Delta- Energy Systems, as Senior Engineer and since 2004 as R&D manager.
He changed in 2008 to AEG Power Solutions as R&D manager and was from 2010 the Group Chief Technical Officer. In 2014 he rejoined Delta as Senior Director R&D.
He holds several patents in magnetics and power electronics and published international. He is with VDE, IEEE, ECPE and member of the PCIM Advisory Board. His research areas are power electronics and devices, magnetics, electromagnetic fields, and EMC.
"Using HIL and P-HIL for cost effective and reproducible testing of power electronics" with Dr. Ravinder Venugopal, OPAL-RT Germany GmbH
Real-time simulation helps accelerate development and derisk early implementations in the race to transform to e-mobility and renewables. (Power) hardware-in-the-loop plays an important role. Among notable current needs is to simulate the new scenarios presented by grids with converter-driven energy sources, not least in testing for resonances, or black start conditions. For real-time simulation – particularly integrating power hardware – this presents new challenges to balance stability, accuracy, speed, and scale.
Prof. Marco Jung talks to Ravinder Venugopal, Managing Director at OPAL-RT Germany, about the issues and approaches (from parallel processing to solvers and FPGAs) in episode 3 of the "Sound On. Power On." podcast.
They also discuss the future, with digital twins harnessing live data to improve real-time simulations, with the support of AI.
Dr. Ravi Venugopal is the managing director of OPAL-RT Germany GmbH, the German subsidiary of OPAL-RT Technologies, a global market-leader in real-time simulation of power systems and power electronics.
He earned his doctorate in aerospace engineering from the University of Michigan, Ann Arbor, (USA) specializing in control systems. Furthermore he holds a master’s degrees in electrical engineering and aerospace engineering. He has over 25 years of experience in the field of real-time simulation across the energy, aerospace and automotive sectors. In the last ten years, he has worked closely with technical leaders on hardware-in-the-loop testing for power electronic systems with a focus on renewable energy integration and e-mobility. He is keenly interested in technology transition from academic and research institutions to industrial practice.
“Key applications for WBG power semiconductors and future outlook” with Dr. Peter Friedrichs, Infineon
In the latest episode of "Sound on. Power on", host Prof. Marco Jung discusses the key applications of WBG power semiconductors with his guest Dr. Peter Friedrichs from Infineon and gives an outlook on the future. In addition to PV and electro mobility, uninterruptible power supplies are also mentioned and discussed as key innovation drivers. Both particularly emphasize the advantages of WBG in the context of energy efficiency and resource efficiency. In addition to SiC semiconductors, GaN semiconductors and their possible areas of application will be discussed. Furthermore, Peter and Marco consider the step into the high-power class, but only with corresponding packaging concept.
Dr. Peter Friedrichs holds a degree in microelectronics, a degree in business administration and engineering, and a PhD in electrical engineering, specialized in SiC power devices. He joined Infineon in 2011 and holds the position of Vice President SiC. He is author or co-author of more than 50 scientific papers and conference proceedings and holds numerous patents in the field of SiC power devices and technologies.
“The future of power electronics” with Frede Blaabjerg, Aalborg University
In the first episode of “Sound On. Power On.” host Prof. Marco Jung and his guest Prof. Frede Blaabjerg from the Aalborg University in Denmark discuss trends in power electronics. Decentralized power generation through renewable energies, especially photovoltaic and wind energy, is on the rise worldwide. What are the next tasks for a success? Listen to Frede sharing his thoughts on the role of hydrogen as a future energy carrier and the main challenges correlating with this development. Marco and Frede provide answers on how to manage a successful energy transition considering a decrease in energy consumption, particularly in industrial applications. They talk about silicon carbide semiconductors in electric vehicles that promise higher efficiency, but also higher costs in comparison to Si-IGBTs. Where is the journey going?
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 33 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 served as a President of IEEE Power Electronics Society. He has been Vice-President of the Danish Academy of Technical Sciences.
He is nominated in 2014-2020 by Thomson Reuters to be between the most 250 cited researchers in Engineering in the world.
About the host
Host Prof. Marco Jung is a professor for e-mobility and electrical infrastructure at the Bonn-Rhein-Sieg University of Applied Sciences. He also heads the department for Converters and Drive Technology at the renowned Fraunhofer Institute for Energy Economics and Energy System Technology.
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