Performance of size-adjutable coils for compensation of lateral misalignment between coils in wireless power transfer systems based on magnetic resonance

Taejun Lim, Yongshik Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publication2017 IEEE 12th International Conference on Power Electronics and Drive Systems, PEDS 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1098-1100
Number of pages3
ISBN (Electronic)9781509023646
DOIs
Publication statusPublished - 2018 Feb 9
Event12th IEEE International Conference on Power Electronics and Drive Systems, PEDS 2017 - Honolulu, United States
Duration: 2017 Dec 122017 Dec 15

Publication series

NameProceedings of the International Conference on Power Electronics and Drive Systems
Volume2017-December
ISSN (Print)2164-5256
ISSN (Electronic)2164-5264

Other

Other12th IEEE International Conference on Power Electronics and Drive Systems, PEDS 2017
CountryUnited States
CityHonolulu
Period17/12/1217/12/15

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All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Lim, T., & Lee, Y. (2018). Performance of size-adjutable coils for compensation of lateral misalignment between coils in wireless power transfer systems based on magnetic resonance. In 2017 IEEE 12th International Conference on Power Electronics and Drive Systems, PEDS 2017 (pp. 1098-1100). (Proceedings of the International Conference on Power Electronics and Drive Systems; Vol. 2017-December). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PEDS.2017.8289185