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Xian-Yong Xiao, Sichuan University, China Xian-Yong Xiao received the Ph.D. degree from Sichuan University, Chengdu, China, in 2010. He is currently a Professor and the Dean with the College of Electrical Engineering, Sichuan University. Professor Xiao is currently the IEEE Senior Member, Member of the IEEE Standards Coordinating Committee, Core Member of the IEEE ASEMD Chapter, Communication Member of CIGRE/CIRED JWG C4.42, Senior Member of the Chinese Society for Electrical Engineering, and the Editor of IEEE Transactions on Power Delivery. His main research interests include power quality analysis and control, uncertainty theory of power systems, and distribution system reliability. In recent years, he has undertaken over 100 projects and published more than 200 papers in academic journals. |
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(Onsite Talk) Speech Title: Frequency Stability Enhancement within Converter-Dominated Power Systems Abstract: The ongoing revolution in renewable energy generation and terminal electrification is transforming modern power systems, characterized by a high prevalence of grid-tied converters across generation, transmission, distribution, and consumption. This shift in leading equipment and the dynamic characteristics of power systems presents significant challenges, particularly concerning frequency stability. Recent years have seen several power blackouts worldwide due to frequency events, underscoring the urgent need to address frequency stability, especially with the increasing role of converters in supporting it. In this keynote, we will explore global instances of grid frequency events, analyze the evolving technical requirements and trends in grid codes, and introduce key technologies that enable grid-tied converters to actively support frequency stability. Specifically, our discussion will cover an introduction to frequency trajectory planning-based converter control strategies, which balance grid code compliance with economic benefits for power producers, and the concept of power preset control, which swiftly compensates for power imbalances, extending the stability range of conventional grid-forming converters. This presentation aims to provide a comprehensive understanding of the challenges and solutions in enhancing frequency stability within converter-dominated power systems. |
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Yijie Wang Yijie Wang is the professor of Harbin Institute of Technology. He has received the Outstanding Youth Fund of National Natural Science Foundation of China. He hosts and participates in more than 20 projects such as the National Natural Science Foundation of China, National Key Research and Development Plan of China; authorizes 20 invention patents; and publishes 1 book and more than 160 journal and conference papers. He has received 7 IEEE journal and conference prize paper awards, such as the First Prize Paper Award of IEEE Transactions on Power Electronics in 2018 and, the Second Prize Paper Award of IEEE Transactions on Power Electronics in 2017. He serves as associate editor of 5 high-level journals such as IEEE TIE, IEEE JESTPE, and IET Power Electronics. He was invited to organize tutorials at 6 international conferences such as IEEE IECON, and IEEE ECCE-Asia. He serves as the member of the IEEE IES Technical Committee on Power Electronics, Secretary of ILDC Committee of IEEE IAS, and Publication Chair of the Wireless Power Transfer Systems Technical Committee for IEEE Power Electronics Society. |
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(Onsite Talk) Speech Title: High Frequency Power Electronics and its Wireless Power Transfer Application In recent decades, there is fast development high frequency power conversion technology. By increasing the operating frequency, the power density of the power module can be greatly improved, and dynamic response can be enhanced. One of the most emerging applications of high frequency power conversion is wireless power transfer system. which can enhance freedom and distance. For the talk firstly, the advantages and challenges of high frequency resonant wireless power transfer system are demonstrated. Based on high operating frequency, the large transformation range and high misalignment tolerance can be achieved through resonant coupling between the transmitting coil and receiving coil. Also, the WPT system volume can be significantly reduced and power density can be improved. Secondly, the application fields and products of high frequency WPT system are introduced, such as mobile devices, bioelectronics devices, aerospace equipment, etc. Finally, the development trend and challenges of high frequency resonant converter technology are discussed, such as high efficiency and high power density approaches, multi-band transmitter or receiver, far-field WPT system, and magnetic optimization for large space transmission in 2D and 3D conditions. |
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Udaya K. Madawala Udaya K. Madawala graduated with a B.Sc. (Electrical Engineering) (Hons) degree from The University of Moratuwa, Sri Lanka, and received his PhD (Power Electronics) from The University of Auckland, New Zealand as a Commonwealth Doctoral Scholar. At the completion of his PhD, he was employed as a Research and Development Engineer by Fisher & Paykel Ltd, New Zealand, to develop new technologies for PM motor drives. At present as a Full Professor in the Department of Electrical, Computer & Software Engineering at University of Auckland, New Zealand, he leads a group of researchers focusing on a number of power electronics projects that are related to energy and wireless EV charging systems for V2X applications. |
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(Online Talk) Speech Title: Electric Vehicles : Charging, Technical Challenges & Solutions Abstract: Electric vehicles (EVs) reduce air pollution, and are ideal for sustainable living. However, the high uptake of EVs also poses some technical challenges. These include the demand for increased levels of EV charging infrastructure, issues associated with charging infrastructure planning and offering charging services, and the grid impacts due to large-scale charging demands that compromise the stable and economic operation of the power grid. To address these technical challenges, it is crucial to deploy charging infrastructure strategically and operate charging services properly. This seminar discusses these technical challenges, highlighting the technical problems, and presents the solutions that have been proposed. The seminar concludes with new research directions in this area to promote further research. |
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