Keynote Speaker I

Prof. Nikos Hatziargyriou
IEEE Fellow
National Technical University of Athens, Greece


Biography: Nikolaos Hatziargyriou received the Diploma in Electrical and Mechanical Engineering from National Technical University of Athens in 1976 and the MSC and PhD degrees from UMIST, Manchester, UK in 1979 and 1982, respectively. Since 1984 he is with the Power Division of the Electrical and Computer Engineering Department of NTUA and since 1995 he is full professor in Power Systems. Since April 2015 he is Chairman and CEO of the Hellenic Distribution Network Operator (DEDDIE). From February 2007 to September 2012, he was Deputy CEO of the Public Power Corporation (PPC) of Greece, responsible for Transmission and Distribution Networks, island DNO and the Center of Testing, Research and Prototyping. He is Fellow Member of IEEE, past Chair of the Power System Dynamic Performance Committee, Honorary member of CIGRE and past Chair of CIGRE SC C6 “Distribution Systems and Distributed Generation”. He is co-chair of the EU Technology and Innovation Platform on Smart Networks for Energy Transition. He is member of the Energy Committee of the Athens Academy of Science. He has participated in more than 60 R&DD Projects funded by the EC and the industry and has coordinated among others, "CARE", "MORE CARE", "MERGE", “Microgrids” and “More Microgrids”. He is Editor in Chief of the IEEE Transactions on Power Systems and member of the Editorial Board of IEEE Transactions on Sustainable Development and the IEEE Power and Energy magazine. He is author of the book “Microgrids: Architectures and Control” and of more than 200 journal publications and 500 conference proceedings papers. He is included in the 2016 Thomson Reuters' list of the top 1% most cited researchers. H-index 78. Getting more:


Keynote Speaker II

Prof. Atsuo Kawamura
IEEE Fellow
Yokohama National University, Japan


Speech: Trend of Very High Efficient DC-DC and DC-AC Power Conversion
Extremely high electric power conversion efficiency over 99.5 % has been challenged by the author’s group and several results including literature survey will be introduced in this invited talk.
First in the field of DC-DC power conversion, a trend of high efficient power conversion over 99.5 % is summarized including speaker’s group research. A new concept of a partial boost circuit for DC-DC converter was introduced and over 99.71% efficiency was verified at the power 100 kW power using 3.3 kV SiC devices. This topology is named to be HEECS chopper by author’s group. This approach seems one of the promising among others in special applications.
Second a literature survey of high efficiency DC-AC conversion over 99.5% will be summarized including the speaker’s approach. The concept of DC-DC high efficiency approach was extended to the partial power conversion principle of DC-AC. Aiming only at a very high efficiency and discarding the high power density, 99.71% efficiency around 2 kW power range was experimentally measured using a circuit topology of combination of a HEECS chopper and an unfolding inverter with SiC devices. Loss analysis of this type of power conversion will be presented from the view point of further loss reduction, including several kinds of loss measurement for system and individual component loss measurement. Also the accuracy of several measurement methods will be discussed
Finally applications of these power conversion techniques will be added if time is available.

Biography: Atsuo Kawamura received the B.S.E.E., M.S.E.E., and Ph.D. degrees in electrical engineering from the University of Tokyo, Tokyo, Japan, in 1976, 1978, and 1981, respectively. In 1981 he joined the Department of Electrical and Computer Engineering at the University of Missouri-Columbia as a Postdoctoral Fellow, and was an Assistant Professor there from 1983 through 1986. He joined the Department of Electrical and Computer Engineering at Yokohama National University in 1986 as an associate professor, and became a professor in 1996. He was a dean of College of Engineering between 2013 and 2015. He has served to completion 31 Ph.D and 117 Master’s students. He holds 7 patents and has published more than 110 journal papers, 250 international conference papers, 500 domestic conference papers and 5 books.

His interests are mainly in power electronics, digital control, electric vehicles, robotics, and traction control. He received the IEEE IAS Transaction Prize Paper Award in 1988, and the Prize Paper Award of IEE of Japan in 1996, and the IEEE Industrial Electronics Transactions best paper award in 2001 and 2002. Dr. Kawamura became a Fellow of the IEEE in 2002 with the citation, "For Contributions to Real-Time Digital Feedback Control of PWM Inverters.”

He was the conference chairperson of the IEEE/IAS and IEEJ/IAS joint Power Conversion Conference (PCC-Yokohama) in 1993. He was an associate editor of IEEE Power Electronics Transactions from1995 to 2000. He was the program chairman of the 2009 Robotics Society of Japan Annual Meeting, and also the general chairman of International Power Electronics Conference (IPEC2010). He served as president of the Institute of Electrical Engineers of Japan/ Industry Application Society (IEEJ/IAS) from 2012-2013. Dr. Kawamura is a fellow of the IEE of Japan, and a member of Robotics Society of Japan.


Keynote Speaker III

Prof. Jinjun Liu
IEEE Fellow
Xi’an Jiaotong University, China


Biography: Jinjun Liu received a B.S. degree in industrial automation and a Ph.D. degree 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, 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 21 faculty members and over 150 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 400 technical papers in peer-reviewed journals and conference proceedings, holds over 50 invention patents (China/US/Europe), and delivered for many times plenary keynote speeches and tutorials at IEEE conferences or China national conferences in power electronics area. 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 eight 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, and the IEEE Transactions on Power Electronics 2016 Prize Paper Award. He served for the IEEE Power Electronics Society as 2015-2019 Executive Vice President and 2020-2021 Vice President for membership, and was elevated to IEEE Fellow in 2018. He is on the Board of China Electrotechnical Society (CES) and a member of DC Transmission and Power Electronics Committee of Chinese Society for Electrical Engineering (CSEE), and was elected the Vice President in 2013 and the Secretary General in 2018 of the CES Power Electronics Society. Since 2013, he has been the Vice President for International Affairs, China Power Supply Society (CPSS) and since 2016, the inaugural Editor-in-Chief of CPSS Transactions on Power Electronics and Applications. Since 2013, he has been serving as the Vice Chair of the Chinese National Steering Committee for College Electric Power Engineering Programs.


Keynote Speaker IV

Prof. Soteris Kalogirou
IEEE Fellow
Cyprus University of Technology, Cyprus


Speech: Renewable Energy Systems: Current Status and Prospects
This presentation examines the current status of renewables in the world. The presentation starts with some facts about the climate change, global warming and the effects of human activities such as the burning of fossil fuels on the climate problem. It then examines the current status of conventional resources of energy such as oil, coal and natural gas and their reserves based on current consumption and known resources, followed by a general outline of the status of renewables in the world, which includes the shares with respect to conventional fuel use for electricity and power and jobs created. Then the basic forms of renewables are examined in some detail, which include solar thermal, both for low and high temperature applications, photovoltaics, hydro power, onshore and offshore wind energy systems and biomass/biofuels. In all these the basic technology is presented followed by the current status as well as the prospects of the technology and new research findings. Finally, some basic facts about the Renewable Energy Journal in which the speaker is the Editor in Chief are presented.

Biography: Soteris Kalogirou is at the Department of Mechanical Engineering and Materials Sciences and Engineering of the Cyprus University of Technology, Limassol, Cyprus. He is currently the Dean of the School of Engineering and Technology. In 2011 he received from the University of Glamorgan the title of D.Sc. He is a Fellow of the European Academy of Sciences and Founding Member of the Cyprus Academy of Sciences, Letters and Arts.

For more than 35 years, he is actively involved in research in the area of solar energy and particularly in flat plate and concentrating collectors, solar water heating, solar steam generating systems, desalination and absorption cooling.

He has a large number of publications as books, book chapters, international scientific journals and refereed conference proceedings. He is Editor-in-Chief of Renewable Energy and Deputy Editor-in-Chief of Energy, and Editorial Board Member of another seventeen journals. He is the editor of the book Artificial Intelligence in Energy and Renewable Energy Systems, published by Nova Science Inc., co-editor of the book Soft Computing in Green and Renewable Energy Systems, published by Springer, editor of the book McEvoy’s Handbook of Photovoltaics, published by Academic Press of Elsevier and author of the books Solar Energy Engineering: Processes and Systems, and Thermal Solar Desalination: Methods and Systems, published by Academic Press of Elsevier.

He has been a member of World Renewable Energy Network (WREN) since 1992 and is a member of the American Society of Heating Refrigeration and Air-conditioning Engineers (ASHRAE), Institute of Refrigeration (IoR) and International Solar Energy Society (ISES).


Keynote Speaker V

Prof. Fujin Deng
Southeast University, China


Biography: Fujin Deng is a Ph. D, Chief Youth Professor of Southeast University, IEEE Senior Member and Head of Department of Power Electronics. He pursued his Ph. D degree in Aalborg University, Aalborg, Denmark from 2009 to 2012. From 2012 to June, 2015, he was a postdoctoral researcher in the Department of Energy Technology, Aalborg University, Aalborg, Denmark, where he was an assistant Professor from July, 2015 to April, 2017. He joined the School of Electrical Engineering, Southeast University in 2017. He hosts ten projects such as National Natural Science Foundation of China, Jiangsu Province Double Talents Project, Jiangsu Province Six Talents High-level Project, Jiangsu Natural Science Foundation and other projects. He has published more than one hundred academic papers, and applied for more than thirty invention patents. His main research interests include wind power generation, high-voltage direct-current technology, modular multilevel converters and DC grid.