Reduction of Electromagnetic Emissions Generated by Inductive Resonant WPT Systems Using Multi-Switching-Frequency-Based Method
2020 IEEE 61st International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON 2020): Proceedings
2020
Deniss Stepins,
Lalithambica Akunuri,
Annamneni Venkata Subbarao,
Jānis Zaķis
Being switch-mode in nature, wireless power transfer systems (WPT) emit significant conducted electromagnetic emissions (EME). In this paper for the first time multi switching frequency scheme is applied to closed-loop WPT systems for reduction of conducted EME. In this method inductive resonant WPT system operates at different discrete switching frequencies sequentially. The effect of the multi switching frequency scheme on main performance characteristics of inductive-resonant wireless battery charger operating in constant current mode is analyzed by using simulations. Performance characteristics of the WPT system with the multi switching frequency scheme are compared with that of WPT system without modulations and with classical switching frequency modulation. It is shown that wireless battery charger with the multi switching frequency scheme exhibits performance similar to performance of wireless battery charger with classical switching frequency modulation but complexity of control is lower.
Atslēgas vārdi
wireless power transfer; modulation; conducted emissions; efficiency
DOI
10.1109/RTUCON51174.2020.9316570
Hipersaite
https://ieeexplore.ieee.org/document/9316570
Stepins, D., Akunuri, L., Subbarao, A., Zaķis, J. Reduction of Electromagnetic Emissions Generated by Inductive Resonant WPT Systems Using Multi-Switching-Frequency-Based Method. No: 2020 IEEE 61st International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON 2020): Proceedings, Latvija, Riga, 5.-6. novembris, 2020. Piscataway: IEEE, 2020, Article number 9316570. ISBN 978-1-7281-9511-7. e-ISBN 978-1-7281-9510-0. Pieejams: doi:10.1109/RTUCON51174.2020.9316570
Publikācijas valoda
English (en)