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:2018:10.1109/TPEL.2017.2768244,
author = {Arteaga, Saenz JMA and Aldhaher, SA and Kkelis, GK and Yates, DCY and Mitcheson, PDM},
doi = {10.1109/TPEL.2017.2768244},
journal = {IEEE Transactions on Power Electronics},
pages = {7744--7758},
title = {Multi-MHz IPT systems for variable coupling},
url = {http://dx.doi.org/10.1109/TPEL.2017.2768244},
volume = {33},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper proposes solutions for an IPT system to operate efficiently when large changes in coupling take place. To achieve high power-efficiency independent of coupling, we utilise inherent regulation properties of resonant converters to avoid losing soft switching for any coupling value, and present the optimal load to the IPT-link at the maximum energy-throughput coupling. A probability-based model is introduced to assess and optimise the IPT system by analysing coupling as a distribution in time, which depends on the dynamic behaviour of the wireless charging system. The proposed circuits are a Class D rectifier with a resistance compression network (RCN) in the receiving-end and a load-independent Class EF inverter in the transmitting-end. Experiments were performed at 6.78 and 13.56 MHz verifying high efficiency for dynamic coupling and variable load resistance. End-to-end efficiencies of up to 88% are achieved at a coil separation larger than one coil-radius for a system capable of supplying 150 W to the load, and the energy-efficiency was measured at 80% when performing a uniformly-distributed linear-misalignment of 0-12.5 cm, corresponding to a receiver moving at constant velocity over a transmitter without power throughput control.
AU  - Arteaga,Saenz JMA
AU  - Aldhaher,SA
AU  - Kkelis,GK
AU  - Yates,DCY
AU  - Mitcheson,PDM
DO  - 10.1109/TPEL.2017.2768244
EP  - 7758
PY  - 2018///
SN  - 0885-8993
SP  - 7744
TI  - Multi-MHz IPT systems for variable coupling
T2  - IEEE Transactions on Power Electronics
UR  - http://dx.doi.org/10.1109/TPEL.2017.2768244
UR  - http://hdl.handle.net/10044/1/52593
VL  - 33
ER  -
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