Design of Conductive Shield for Wireless Power Transfer System for Electric Vehicle Considering Automotive Body

Abstract

In this paper, we quantitatively investigated the undesirable effects of the automotive body on the performance of and the magnetic field distribution around the wireless power transfer (WPT) system for electric vehicle (EV), and what is more, we found that the magnetically coupled coils of WPT system for EV can almost completely be shielded from the detrimental influences of the automotive body by employing the intermediate conductive shield only with the diameter which is at least 4 times larger than the air gap length. The simulation and measurement data show that, by employing the intermediate conductive shield, the spot value of the magnetic near field is reduced by at least 70 % and the power transfer efficiency as high as 96 % can be achieved under the automotive body.

Meeting Name

14th IEEE/RAS-EMBS International Conference on Rehabilitation Robotics, ICORR 2015 (2015: Aug. 11-14, Singapore)

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Keywords and Phrases

automotive material; electric vehicle; inductive charging; inductive power transmission; magnetic shielding

International Standard Book Number (ISBN)

978-147996615-8

International Standard Serial Number (ISSN)

1077-4076

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2015 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Aug 2015

Link to Full Text

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