Prof. C. Q. Jiang Keynote: Small Leap in Progress: Next-generation Nanocrystalline Wireless EV Charger
Within the course of Power Electronic Converters M will be held the seminar "Small Leap in Progress: Next-generation Nanocrystalline Wireless EV Charger". The seminar will be delivered by Prof. C. Q. Jiang, from the State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong in Room 0.5 on 03.06.2025 from 16:15 to 17:00.
Abstract:
Electric vehicles (EVs) stand out for their ultra-low carbon emissions, making them essential for energy conservation and emission reduction in road transportation, mitigating climate change, and improving air quality. However, most current fast EV chargers require users to manually connect the charging cable to the vehicle, posing inconvenience and even a risk of electric shock. In contrast, the increasingly popular Wireless Power Transfer (WPT) eliminates the need for physical contact, providing a safer and more convenient charging experience. We will demonstrate a new high-power 22 kW nanocrystalline smart wireless charging technology, positioning it as a key EV component. Instead of the conventional ferrite wireless charging with low magnetic saturation (0.45 T), high core loss, and poor thermal performance, we are cohesively designing and manufacturing a new laminated nanocrystalline alloy (FeCuNbSiB) strip with a thickness of less than 18 µm and optimizing it as a magnetic core for a wireless EV charging system, which can help enhance the magnetic saturation (1.2 T), reduce the core loss, improve the thermal robustness, and compact the system size. Laboratory measurements show that the DC system efficiency reaches 97.5%, with AC transmission efficiency between the magnetic coupling mechanisms as high as 98.67%. This progress will lead to the final fully convenient and intelligent EV power management and utilization in the foreseeable future.
Speaker Bio:
Prof. C. Q. Jiang has been appointed as an Associate Professor in the Department of Electrical Engineering, and the State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong. His research portfolio covers power electronics, wireless power transfer, electric machines and drives, and electric vehicle (EV) technologies.
Prof. Jiang has been awarded more than 15 million HKD grants since 2021. He is leading a research team with 11 Postdocs, 11 PhD students, and 5 Research Assistants. To date, Prof. Jiang has more than 120 academic papers published in peer-reviewed journals and is the inventor of 27 patents. Prof. Jiang received the Ph.D. from The University of Hong Kong, Hong Kong SAR, China, in 2019. From 2019 to 2021, he was a Postdoctoral Research Associate at the University of Cambridge, U.K. Also, he is affiliated with Clare Hall, University of Cambridge.
Prof. Jiang was the recipient of Hong Kong SciTech Pioneers Award, CENG Research Excellence Award, Gold Medals with Congratulations of the Jury in International Exhibition of Inventions of Geneva, Winner of CAPE Acorn Blue Sky Research Award at the University of Cambridge, Gold Medal in 3rd Asia Exhibition of Innovations and Inventions, and First Prize in the Interdisciplinary Research Competition at the University of Hong Kong. He is currently an Associate Editor of IET Renewable Power Generation, Guest Editor of Energies, Electronics, Wireless Power Transfer, and IEEE Open Journal of Vehicular Technology.
Pubblicato il: 26 maggio 2025
