Imperial College London
Alternate

ProfessorPaulMitcheson

Faculty of Engineering, Department of Electrical and Electronic Engineering

Professor in Electrical Energy Conversion
 
 
 
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Contact

 

+44 (0)20 7594 6284paul.mitcheson

 
 
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Assistant

 

Miss Guler Eroglu +44 (0)20 7594 6170

 
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Location

 

1112Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Arteaga:2019:10.1109/TPEL.2018.2871188,
author = {Arteaga, Saenz J and Aldhaher, S and Kkelis, G and Kwan, C and Yates, D and Mitcheson, P},
doi = {10.1109/TPEL.2018.2871188},
journal = {IEEE Transactions on Power Electronics},
pages = {5093--5104},
title = {Dynamic capabilities of multi-MHz inductive power transfer systems demonstrated with batteryless drones},
url = {http://dx.doi.org/10.1109/TPEL.2018.2871188},
volume = {34},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper presents the design of a multi-MHz inductive power transfer (IPT) system showcasing lightweight and energy-efficient solutions for non-radiative wireless power transfer. A proof of concept is developed by powering a drone without a battery that can hover freely in proximity to an IPT transmitter. The most challenging aspect, addressed here for the first time, is the complete system level design to provide uninterrupted power-flow efficiently while allowing for variable power demand and highly variable coupling factor. The proposed solution includes the design of lightweight air-core coils that can achieve sufficient coupling without degrading the aerodynamics of the drone, and designing newly-developed resonant power converters at both ends of the system. At the transmittingend, a load-independent Class EF inverter, which can drive a transmitting-coil with constant current amplitude and achieves zero-voltage switching (ZVS) for the entire range of operation, was developed; and at the receiving-end, a hybrid Class E rectifier, which allows tuning for large changes in coupling and power demand, was used. For the demo, the range of motion of the drone was limited by a 7.5 cm nylon string tether, connected between the centre of the transmitting-coil and the bottom of the drone. The design of the IPT system, including all the power conversion stages and the IPT link, is explained in detail. The results on performance and specific practical considerations required for the physical implementation are provided. An average end-to-end efficiency of 60% was achieved for a coupling range of 23% to 5.8%. Relevant simulations concerning human exposure to electromagnetic fields are also included to assure that the demo is safe according to the relevant guidelines. This paper is accompanied by a video featuring the proposed IPT system.
AU  - Arteaga,Saenz J
AU  - Aldhaher,S
AU  - Kkelis,G
AU  - Kwan,C
AU  - Yates,D
AU  - Mitcheson,P
DO  - 10.1109/TPEL.2018.2871188
EP  - 5104
PY  - 2019///
SN  - 0885-8993
SP  - 5093
TI  - Dynamic capabilities of multi-MHz inductive power transfer systems demonstrated with batteryless drones
T2  - IEEE Transactions on Power Electronics
UR  - http://dx.doi.org/10.1109/TPEL.2018.2871188
UR  - https://ieeexplore.ieee.org/document/8469090
UR  - http://hdl.handle.net/10044/1/64758
VL  - 34
ER  -
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