This work presents the estimated performance of a virtual resonant-type wireless power transfer system with size-adjustable coils to minimize the reduction of the transfer efficiency due to the lateral misalignment between the source and load coils. Experimental results for a 6.78 MHz system reveals that by reducing the size of the coil adaptively according to the misalignment, the transfer efficiency can be maintained above 80% even when effective overlapping area is reduced to 11.5% between a 20×20 cm2 coil pair that is placed 5 cm apart. Moreover, the proposed coil system successfully removes the transfer null caused by a large misalignment. Although the results provided are based on switching between coils with different sizes, experimental results for a single-coil system will be presented at the conference.
|Title of host publication||2017 IEEE 12th International Conference on Power Electronics and Drive Systems, PEDS 2017|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||3|
|Publication status||Published - 2018 Feb 9|
|Event||12th IEEE International Conference on Power Electronics and Drive Systems, PEDS 2017 - Honolulu, United States|
Duration: 2017 Dec 12 → 2017 Dec 15
|Name||Proceedings of the International Conference on Power Electronics and Drive Systems|
|Other||12th IEEE International Conference on Power Electronics and Drive Systems, PEDS 2017|
|Period||17/12/12 → 17/12/15|
Bibliographical notePublisher Copyright:
© 2017 IEEE.
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering