@inproceedings{cef04ffba4f642f7b416557d8c0c9080,
title = "Comparison of magnetic field emission from unipolar and bipolar coil-based wireless charging systems",
abstract = "In this study, the leakage magnetic field (LMF) from the unipolar (circular, rectangular, etc.) and bipolar (double-D) coil-based wireless charging systems (WCSs) are investigated and compared. The unipolar and bipolar pads, which are the two most widely adopted charging-pads, have significantly different magnetic field emission characteristics. In this paper, the spatial-distribution and vector-pattern of the leakage magnetic field are studied and compared for similar 11 kW unipolar and bipolar coil-based WCSs. The field emissions are simulated using finite element analysis (FEA) and tested experimentally with an 11 kW bipolar coil-based WCS prototype. The results show that the leakage magnetic field of the unipolar and bipolar pads have widely different vector-orientation and spatial distributions of the leakage magnetic field. The results show that the unipolar coil based WCS has a dominant vertical and the bipolar pads coil-based WCS has dominant horizontally aligned leakage magnetic field. Considering the shielding, the aluminum plate is found highly effective for the unipolar pad and almost ineffective for bipolar pads.",
keywords = "EMF, Inductive charging, electric vehicle, leakage field, shielding effectiveness",
author = "Mostak Mohammad and Pries, {Jason L.} and Onar, {Omer C.} and Galigekere, {Veda P.} and Su, {Gui Jia} and Jonathan Wilkins",
note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020 ; Conference date: 23-06-2020 Through 26-06-2020",
year = "2020",
month = jun,
doi = "10.1109/ITEC48692.2020.9161726",
language = "English",
series = "2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1201--1207",
booktitle = "2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020",
}