Proceedings of the AASRI International Conference on Industrial Electronics and Applications (2015)

Structure Analysis of Magnetic Coupling Resonant for Wireless Power Transmission System

Authors
Zhao Qiang, Wang Anna, Wang Hao
Corresponding Author
Zhao Qiang
Available Online September 2015.
DOI
https://doi.org/10.2991/iea-15.2015.93How to use a DOI?
Keywords
wireless power transfer; magnetic coupling resonant; frequency splitting; mixed-resonant circuit
Abstract

Using magnetically coupled resonators coils in a strongly coupled near field was suggested for wireless power transfer. A circuit model is presented along with a derivation of key system concepts such as frequency splitting, the maximum operating distance (critical coupling). Here, a simple circuit topological structure, the series-shunt-mixed resonant coupling, is presented with better performance in the transfer distance and efficiency. The theoretical analysis and experimental verifications of several resonant coupling structures have been investigated by several groups. In the experimental verification, a pair of resonant coils with 15 cm diameter was used. The experimental results show that high efficiency of 85% was achieved at a distance of 10 cm and 45% efficiency at 20 cm. Through the developed model, it is seen that the system can transfer power over a midrange of a few meters and that impedance matching is important to achieve high efficiency.

Copyright
© 2015, 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/).

Download article (PDF)

Volume Title
Proceedings of the AASRI International Conference on Industrial Electronics and Applications (2015)
Series
Advances in Engineering Research
Publication Date
September 2015
ISBN
978-94-62520-65-3
ISSN
2352-5401
DOI
https://doi.org/10.2991/iea-15.2015.93How to use a DOI?
Copyright
© 2015, 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  - Zhao Qiang
AU  - Wang Anna
AU  - Wang Hao
PY  - 2015/09
DA  - 2015/09
TI  - Structure Analysis of Magnetic Coupling Resonant for Wireless Power Transmission System
BT  - Proceedings of the AASRI International Conference on Industrial Electronics and Applications (2015)
PB  - Atlantis Press
SP  - 380
EP  - 384
SN  - 2352-5401
UR  - https://doi.org/10.2991/iea-15.2015.93
DO  - https://doi.org/10.2991/iea-15.2015.93
ID  - Qiang2015/09
ER  -