Proceedings of the 2016 6th International Conference on Mechatronics, Computer and Education Informationization (MCEI 2016)

Electromagnetic Coupler in Wireless Charging for Electric Vehicles

Authors
Yufeng Liu, Chunyan Xiao
Corresponding Author
Yufeng Liu
Available Online December 2016.
DOI
https://doi.org/10.2991/mcei-16.2016.256How to use a DOI?
Keywords
Electric vehicle; Wireless charging; Electromagnetic coupler; Misalignment tolerance; Power stabilization
Abstract

The transmission power in wireless charging for electric vehicles is unstable due to the decline of the coupling coefficient caused by the misalignment of the electromagnetic coupler. Considering misalignment tolerance and coupling coefficient, the paper designed a kind of asymmetric electromagnetic coupler with large lateral misalignment tolerance. The coupling coefficient of charging pads can be greatly improved by using the asymmetric structure, and the requirement of electromagnetic safety can still be met. The rectangular coil and the linearly-arranged ferrite strip along the long side ensure that the coupler has greater lateral misalignment tolerance, which solves the problem of not easy adjustment of lateral misalignment when electric vehicles park for wireless charging. The experimental results of transmission power with misalignment well agree with simulation results. Both simulation and experimental results show that the transmission power can keep stable within a wide offset range. In experiments, the transmission power of 2.1 kW at the interval of 125 mm has been realized, and the power variation within the offset of 100 mm is no more than 20%.

Copyright
© 2017, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2016 6th International Conference on Mechatronics, Computer and Education Informationization (MCEI 2016)
Series
Advances in Intelligent Systems Research
Publication Date
December 2016
ISBN
978-94-6252-282-4
ISSN
1951-6851
DOI
https://doi.org/10.2991/mcei-16.2016.256How to use a DOI?
Copyright
© 2017, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Yufeng Liu
AU  - Chunyan Xiao
PY  - 2016/12
DA  - 2016/12
TI  - Electromagnetic Coupler in Wireless Charging for Electric Vehicles
BT  - Proceedings of the 2016 6th International Conference on Mechatronics, Computer and Education Informationization (MCEI 2016)
PB  - Atlantis Press
SP  - 1250
EP  - 1257
SN  - 1951-6851
UR  - https://doi.org/10.2991/mcei-16.2016.256
DO  - https://doi.org/10.2991/mcei-16.2016.256
ID  - Liu2016/12
ER  -