Abstract
This study reviews the exposure limits and safety of intermediate frequency (IF) electromagnetic field (EMF) emissions for wireless electric vehicle charging (WEVC) applications. A review of the electromagnetic field exposure limits identified in international guidelines are presented. An overview of the electromagnetic field shielding technologies is provided including recommended geometries, materials, and performances of the methods available in the literature. Available laboratory results of EMF emissions are summarized considering several wireless power transfer studies in different power levels. Possible EMF reduction techniques are discussed with shielding practices and ORNL case studies. Also, living object detection (LOD) and foreign object detection (FOD) methods are reviewed from a safety aspect.
| Original language | English |
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| Title of host publication | 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 17-24 |
| Number of pages | 8 |
| ISBN (Electronic) | 9781728146294 |
| DOIs | |
| State | Published - Jun 2020 |
| Event | 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020 - Chicago, United States Duration: Jun 23 2020 → Jun 26 2020 |
Publication series
| Name | 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020 |
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Conference
| Conference | 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020 |
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| Country/Territory | United States |
| City | Chicago |
| Period | 06/23/20 → 06/26/20 |
Funding
This research used the Power Electronics and Electric Machinery Research Center at the National Transportation Research Center, a DOE EERE User Facility operated by the Oak Ridge National Laboratory (ORNL). The authors would like to thank Dr. Burak Ozpineci (ORNL), Dr. David Smith (ORNL), and Lee Slezak (U.S. Department of Energy) for their support and guidance of this work. This manuscript has been authored by Oak Ridge National Laboratory, operated by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).
Keywords
- EV / PEV charger
- FOD
- LOD
- electromagnetic field exposure
- safety
- shielding
- standards
- wireless energy transfer