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Abstract
Wireless power transfer (WPT) technologies have now reached a commercial stage in applications going from consumer electronics, biomedical implants and domestic applications. For electrical cars, WPT offers some new opportunities compared to classical wired charging. Although there exist some commercial cars equipped with wireless charging system, improving design procedures needs to address various domains including power electronics, components and electromagnetics. The magnetic coupling system is a key component of wireless power transfer: the coils and surrounding materials have a great impact on the efficiency of the transfer as well as the level of the stray field near the system. The paper aims to present three essential features regarding the inductive power transfer dedicated to electric vehicles. The first one addresses the topology and efficiency of the coupling system, the second one underlines the human exposure considerations and the third one deals with the impact of uncertainties regarding system parameters.
Acknowledgements
The author wishes to acknowledge with gratitude current and past PhD students for their essential contributions: Vincenzo Cirimele, Ping-Ping Ding, Shuoliang Ding, Mohammad Ibrahim, Paul Lagouanelle, Yao Pei.
Disclosure statement
No potential conflict of interest was reported by the author(s).
Additional information
Notes on contributors
Lionel Pichon
Lionel Pichon received the Dip. Eng. from Ecole Supérieure d'Ingénieurs en Electronique et Electrotechnique in 1984. In 1985 he joined the Laboratoire de Génie Electrique de Paris where he earned a PhD in electrical engineering in 1989. He got a position at the CNRS (Centre National de la Recherche Scientifique) in 1989. He is now Directeur de Recherche (Senior Research Scientist) in GeePs (Group of electrical engineering – Paris), a laboratory belonging to four institutions: CNRS, CentraleSupélec, Université Paris-Saclay, Sorbonne Université. His research interests include computational electromagnetics for wave propagation, scattering and electromagnetic compatibility. He is author or co-author of more than 120 journal papers.