Frequency-Modulated Inductive-Resonant WPT System with Improved Efficiency

2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC 2020): Proceedings 2021
Ouseph Charles, Deniss Stepins, Jānis Zaķis

Approaches to get higher efficiency of switching-frequency-modulated inductive-resonant wireless power transfer systems (WPT) are proposed in the paper. The approaches are verified by using simulations. The approaches are based on utilization of modified resonant tanks with electronically-switched capacitors or electronically tunable capacitors. The approaches can sufficiently improve efficiency, reduce RMS and peak values of currents and reduce output current ripples of frequency-modulated WPT systems for battery charging.

Keywords
wireless power transfer; frequency modulation; efficiency; resonant tank
DOI
10.1109/PEMC48073.2021.9432580
Hyperlink
https://ieeexplore.ieee.org/document/9432580

Charles, O., Stepins, D., Zaķis, J. Frequency-Modulated Inductive-Resonant WPT System with Improved Efficiency. In: 2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC 2020): Proceedings, Poland, Gliwice, 25-29 April, 2021. Piscataway: IEEE, 2021, pp.774-781. ISBN 978-1-7281-5661-3. e-ISBN 978-1-7281-5660-6. ISSN 2469-8741. e-ISSN 2473-0165. Available from: doi:10.1109/PEMC48073.2021.9432580

Publication language
English (en)