Prof. Frank Osterwald
EKSH
Monday, 27 June
Title: Power Electronics – the Booster Vaccination for the Climate
Abstract
According to Robert Habeck, Federal Minister for Economic Affairs and Climate Action in Germany, we are facing an enormous climate challenge. To meet the national climate protection goals in terms of CO2 emission reduction, we must triple our effort. Especially in the energy sector, Robert‘s opening balance is very sobering. The CO2-emissions have risen again in 2021, the expansion of onshore and offshore wind energy is at its lowest level in the last ten years, the completion of the power grids has been delayed by several more years, and the electricity demand for 2030 has been systematically underestimated. To get back on track we have to dramatically accelerate the expansion of renewables.
Power Electronics, therefore, is so to say a booster vaccination for the climate.
On the one hand, the broad implementation of power electronics systems and components in renewable energy generation systems, in the grid and in energy consuming systems is mandatory. On the other hand, research and development along the whole value chain from materials, power semiconductor technologies, passive components, modules and systems is crucial.
EKSH as funding partner in Schleswig-Holstein has been promoting a long list of power electronics projects in the frame of its energy and climate protection activities. Among others, a group of PhD scholarships in this technical field has been funded.
As hydrogen, together with new power converters and controls, will play an important role for our ambitions to reduce our CO2 footprint, EKSH is hosting Schleswig-Holstein’s Competence Center for Hydrogen Research (HY.SH) and has recently started several projects.
To demonstrate, that there were good reasons to hold PEDG 2022 in Kiel, examples of EKSH power electronics projects as well as hydrogen activities in Schleswig-Holstein will be given in the keynote.
CV
Prof. Dr.-Ing. Frank Osterwald had studied electrical engineering at Technical University Berlin (TU Berlin), where he graduated as Diplom-Ingenieur in 1995. As research assistant at Fraunhofer-IZM, Berlin, Germany, he did his doctorate in 1999 and went through several industrial manager positions afterwards. He was director of R&D for Smart Card Modules at ORGA Kartensysteme, Flintbek, Germany, director of R&D and technology and member of the management board at AEMtec, Berlin, Germany. As member of the management board of Danfoss Silicon Power, Flensburg, Germany, Frank Osterwald has been senior director R&D and has been responsible for university relations and industry associations. Furthermore, Frank Osterwald is honorary professor at University of Applied Sciences Kiel, Germany, and director at PCIM Europe. Since October 2021 Frank Osterwald is managing director of Gesellschaft für Energie und Klimaschutz Schleswig-Holstein (EKSH), Kiel, Germany.
Prof. Rik W. De Doncker
E.ON ERC & Research Campus FEN, RWTH Aachen University
Monday, 27 June
Power Electronics – Key Enabling Technology to Realizing the Energy Transition
Abstract
Not only concerns about climate change and global political issues, but also the liberalization of the energy market has been the main driving force towards more decentralized power generation based on renewables (wind, PV) and high-exergy CHP systems.
To cope with the volatile nature of these vast amounts of renewable power sources, energy supply systems need to provide (1) storages of energy (2) automated demand response and sector coupling, and (3) flexible, controllable electrical power flow in meshed distribution grids. The presentation will focus on power electronic solutions that enable meshed (cellular) DC distribution grid structures that are economically viable and reduce the overall ecological footprint as compared to classical AC solutions. Noteworthy is the fact that the legal framework for distribution grids allows DC networks to be built as private networks for prosumers (energy communities). As a new generation of wide bandgap power semiconductors are coming to market an outlook is given of further innovation, which benefits DC-based networks and energy supply systems.
CV
Rik W. De Doncker (M'87‑SM'99‑F'01) received in 1981 his Diploma in Electrical-Mechanical Engineering and in 1986 his Ph.D. degree in electrical engineering from the KULeuven, Belgium. In 1987, he was appointed Visiting Associate Professor at the University of Wisconsin, Madison. In 1988, he joined the GE Corporate Research and Development Center, Schenectady, NY. In November 1994, he joined Silicon Power Corporation (formerly GE-SPCO) as Vice President Technology, developing world’s first medium-voltage static transfer switch.
Since Oct. 1996, he is professor at RWTH Aachen University, Germany, where he leads the Institute for Power Electronics and Electrical Drives (ISEA). In Oct. 2006 he was appointed director of the E.ON Energy Research Center at RWTH Aachen University, where he also founded the Institute for Power Generation and Storage Systems (PGS). He is director of the RWTH CAMPUS Cluster Sustainable Energy and leads the German Federal Government BMBF Flexible Electrical Networks (FEN) Research CAMPUS. He has a doctor honoris causa degree of TU Riga, Latvia.
He has published over 600 technical papers and is holder of more than 70 patents. Dr. De Doncker is recipient of the IAS Outstanding Achievements Award and the IEEE Power Engineering Nari Hingorani Custom Power Award (2008). In 2010, he became member of the German National Platform for electro-mobility. He is the recipient of the 2013 Newell Power Electronics IEEE Technical Field Award, and the 2014 IEEE PELS Harry A. Owen Outstanding Service Award. In 2015 he was awarded Fellow status at RWTH University. In 2016 he became member of the German Academy of Science and Technology (ACATECH). 2017 he became Member of the International Advisory Board of French automotive research institute VEDECOM. He has been awarded the 2020 IEEE Medal in Power Engineering.
Prof. Remus Teodorescu
Aalborg University
Tuesday, 28 June
Title: Smart Battery, a new technology.
Abstract
Lithium-ion batteries are extensively used in a wide range of applications from electric vehicles to energy storage systems. Although the performance parameters in terms of energy density and cost have already met the targets, the remaining challenges are improved safety and longer lifetime. Especially for battery packs with many cells, the degradation process is accelerated due to the difference between cells electrical characteristics leading to a limited lifetime and reliability issues. This lecture introduces the novel concept of Smart Battery that combines batteries with advanced power electronics and artificial intelligence (AI) with the purpose to develop a new generation of battery solution for transportation and grid storage with extended lifetime. The key feature is the bypass device, a half-bridge parallel to each cell, that can control individual cell-level load management without affecting the load. An advanced AI-based lifetime controller is trained to recognize the signs of stressed battery cells and decide to insert relaxation time, resulting in a pulsed current operation and extended lifetime with up to 100%. The smart battery unique architecture is capable of on-line retraining of AI lifetime controller using data streaming from cells and cloud computing. The smart battery technology is currently at proof of concept stage.
CV
Remus Teodorescu received the Dipl.Ing. degree in electrical engineering from the Polytechnical University of Bucharest, Bucharest, Romania, in 1989, Ph.D. degree in power electronics from the University of Galati, Romania, in 1994 and , Dr.HC in 2016 from Transilvania University of Brasov. In 1998, he joined the Department of Energy Technology at Aalborg University where he is currently a Full Professor. Between 2013 and 2017, he has been a Visiting Professor with Chalmers University. He is IEEE/PELS Fellow since 2012 for contributions to grid converters technology for renewable energy systems.
In 2022 he became a Villum Investigator and leader of Center of Research for Smart Battery at Aalborg University.
His main current research areas are: Modular Multilevel Converters (MMC) for HVDC/FACTS, Li-Ion battery SOH Estimation with AI and Smart Batteries.
Prof. Stephan Rupp
MR: Business Development Power Electronics
Tuesday, 28 June
Title: Running Power Grids by renewable Energy Sources
Abstract
„While the share of solar power and wind farms in power grids is ever increasing, the majority of renewable energy sources still operate as power sources by feeding currents into the grid: They do not contribute to voltage stability and do not contribute to dynamic grid stability. For this purpose, power grids still depend on the inertia and voltage regulation of traditional power plants. At the same time, renewable power sources in combination with energy storages are operated successfully in grid forming mode in micro-grids. The contribution presents a concept to engage renewable energy sources such as wind farms in grid forming mode, which will render power grids more resilient and less dependent on conventional power plants. A key element of this concept is the use of DC-grids as a replacement for medium voltage and high voltage AC distribution. Acknowledgements: The concept is a result of research projects AC2DC and ENSURE.
CV
Stephan Rupp received the Dipl.-Ing. degree in electrical engineering from Saarland University, Saarbrücken, Germany, in 1986 and the Ph.D. degree in communications engineering and measurement technology on digital image processing from RWTH Aachen, Germany, in 1991.
In 1986, he joined Philips GmbH, Aachen, Germany, as scientist in the research laboratory, development of digital radiography systems for Philips Medical Systems. In 1991, he joined Alcatel, Stuttgart, Germany, in telecommunications product management; from 1994, he was responsible for the intelligent networks division and became head of network solutions in 1999. In 2006, je joined Kontron Modular Computers, Kaufbeuren, Germany, in embedded systems, systems architect for communication systems, and became head of business development and product management in 2008. In 2011, je joined Maschinenfabrik Reinhausen, Regensburg, Germany, as product manager for electronic products. In 2012 he became professor of electrical engineering, head of communications engineering at DHBW Stuttgart, Germany. He was head of the Steinbeis Transfer Centre for Energy Information Technology.
Since 2018, he is working for Maschinenfabrik Reinhausen, Regensburg, Germany, as manager business development power electronics. He is teaching part-time at the DHBW Stuttgart, Germany, in the master’s program electrical power supply systems.
Prof. Jinjun Liu
Xi’an Jiaotong University
Wednesday, 29 June
Title: Advanced Coordinative Control for Distributed Energy Source Converters and Microgrid
Abstract
The coordinative control for distributed energy source converters and microgrid is to ensure the system voltage to be within a nominal magnitude/frequency range and adequate output power sharing among all these energy sources, and at the same time to guarantee fast and smooth transfer of the microgrid operation between islanded mode and grid-connected mode. This can be realized with the help of communications among the source converters and with a transfer switch between the microgrid and the larger grid, however it is very often required to realize the coordination through more advanced control, e.g. autonomous control where each source converter or the transfer switch is controlled by its own without getting or sensing any information from others or a center controller, or control with low-band-width communication, so that a higher reliability and an easy-to-implement plug-and-play feature could be achieved. At the distributed converters level there are two types of such advanced control that have been developed so far, i.e. master-slave control and droop control. The basic operation principles of both will be introduced with DC bus power grids as examples, and with droop control being focused, through detailed illustrations based on the simplest system structure of 2 paralleled source converters and one common load. These principles will then be extended to AC bus power systems, where droop control is executed in two channels: active power and reactive power. Several major technical issues that need to be dealt with in droop control will then be identified and some of them will be discussed extensively. At microgrid level, the major issues to solve in achieving autonomous transfer control are also clarified. The recent research results at Xi’an Jiaotong University to tackle these issues at both distributed converters level and microgrid level will be presented, and the major stare-of-arts methods and techniques will also be summarized for comparison. A new concept of flexible transfer converter is proposed to replace the traditional transfer switch and implement fully autonomous transfer control for the microgrid.
CV
Jinjun Liu (M’97–SM’10–Fellow’19) received the B.S. and Ph.D. degrees in electrical engineering from Xi’an Jiaotong University (XJTU), Xi’an, China, in 1992 and 1997, respectively.
He then joined the XJTU Electrical Engineering School as a faculty. From late 1999 to early 2002, he was with the Center for Power Electronics Systems, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA, as a Visiting Scholar. In late 2002, he was promoted to a Full Professor and then the Head of the Power Electronics and Renewable Energy Center at XJTU, which now comprises more than 20 faculty members and over 200 graduate students and carries one of the leading power electronics programs in China. From 2005 to early 2010, he served as an Associate Dean of Electrical Engineering School at XJTU, and from 2009 to early 2015, the Dean for Undergraduate Education of XJTU. He is currently a XJTU Distinguished Professor of Power Electronics. He coauthored 3 books (including one textbook), published over 500 technical papers in peer-reviewed journals and conference proceedings, holds 70 invention patents (China/US/EU), and delivered for many times plenary keynote speeches and tutorials at IEEE conferences or China national conferences. His research interests include modeling, control, and design methods for power converters and electronified power systems, power quality control and utility applications of power electronics, and micro-grids for sustainable energy and distributed generation.
Dr. Liu received for many times governmental awards at national level or provincial/ministerial level for scientific research/teaching achievements. He also received the 2006 Delta Scholar Award, the 2014 Chang Jiang Scholar Award, the 2014 Outstanding Sci-Tech Worker of the Nation Award, the 2016 State Council Special Subsidy Award, the IEEE Transactions on Power Electronics 2016 and 2021 Prize Paper Awards, and the Nomination Award for the Grand Prize of 2020 Bao Steel Outstanding Teacher Award. He served as the IEEE Power Electronics Society Region 10 Liaison and then China Liaison for 10 years, an Associate Editor for the IEEE TRANSACTIONS ON POWER ELECTRONICS since 2006, 2015-2019 Executive Vice President and 2020-2021 Vice President of IEEE PELS. He was on the Board of China Electrotechnical Society 2012-2020 and was elected the Vice President in 2013 and the Secretary General in 2018 of the CES Power Electronics Society. He was the Vice President for International Affairs, China Power Supply Society (CPSS) from 2013 to 2021, and since 2016, the inaugural Editor-in-Chief of CPSS Transactions on Power Electronics and Applications. He was elected the President of CPSS in Nov. 2021. Since 2013, he has been serving as the Vice Chair of the Chinese National Steering Committee for College Electric Power Engineering Programs.
Dr. Don Tan
E2 Systems
Wednesday, 29 June
Title: Autonomous Substations and 100% Renewable Integration
Abstract
Autonomous power substations, powered by flexible electronic large transformers (FeLPTs), are capable of providing the full suite of the basic functionality for emerging electronic power grids. They will also provide an effective means for achieving 100% renewable energy integration with autonomous operation and transactive power for the entire grid. The versality of a FeLPT is first reviewed, followed by the introduction of the autonomous power substation. Then myths about realizing 100% renewable integration into the power grid will be debunked, showing a path for 100% renewable integration. Data from open sources will be discussed to illustrate its versality and capabilities for volt/var compensation and for frequency control.
CV
Dr. Don Tan is NGAS Distinguished Engineer/Fellow/Chief Engineer-PC. He earned his Ph.D. degree from Caltech and is IEEE Fellow.
Well-recognized as an impactful and visionary leader in near adiabatic (ultra-efficient) power conversion and resilient power/energy systems, he has pioneered breakthrough innovations with high impact industry firsts and world-record performances.
His technologies have attracted a total research and technology development funding of $36M and his technologies created company’s four product lines with hundreds of designs and thousands of flight hardware “that significantly enhanced national security.” His resilient energy system has saved national assets in billions of dollars. Dr. Tan has given numerous keynotes and invited talks. He serves frequently on national and international funding review and prestigious position selection committees.