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Adaptive Wireless Charging Using Resonant Coupling with Multiple Transmit Coils
Conference proceeding

Adaptive Wireless Charging Using Resonant Coupling with Multiple Transmit Coils

Michael Salino-Hugg, David R Andersen, Raghu Mudumbai and Anton Kruger
IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society, pp.4763-4768
10/2018
DOI: 10.1109/IECON.2018.8591112

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Abstract

We describe an experimental study of an mid-range resonant wireless power transfer (WPT) system with multiple transmit coils. While there exists substantial literature on WPT systems using coupled resonance as well as those using multi-coil transmitters, previous work has been limited to simple transmitter configurations with a small number of coils uncoupled with each other because of the difficulty of accurately tuning and optimizing such systems. Our key novelty is to use real-time receiver feedback to adaptively tune the system. This simple and powerful idea opens up the possibility of large-scale WPT systems with potentially large numbers of resonant transmitter coils that can adaptively transfer power to one or more receivers using realtime feedback. We describe a experimental study that shows the feasibility of this concept and its advantages over WPT systems without real-time feedback.
Coils Couplings Current measurement inductive wireless power transfer MISO Receivers resonance Resonant frequency Voltage measurement Wireless power transfer

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