Structure Analysis of Magnetic Coupling Resonant for Wireless Power Transmission System
- https://doi.org/10.2991/iea-15.2015.93How to use a DOI?
- wireless power transfer; magnetic coupling resonant; frequency splitting; mixed-resonant circuit
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.
- © 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 -