Abstract
The dynamic wireless power transfer systems may reduce the battery size of electric vehicles while maintaining the travel range. Similar to the stationary wireless power transfer systems, the compensation networks are desired in dynamic wireless charging systems at the primary and secondary sides to reduce the reactive power requirement from the source and improve the efficiency. Consequently, it is essential to understand the behavior of the compensation networks, especially the sensitivity to misalignments. This paper presents a sensitivity analysis of LCC-S and LCC-P compensation networks for a 200-kW power transfer with variations in the coupling coefficient due to the electric vehicle travel and misalignments between the pads. The sensitivity study combines the electromagnetic finite element analysis and circuit analysis to determine the impact of misalignments on the wireless power transfer system characteristics. The theoretical analysis is verified by conducting circuit simulations at discrete points to verify the accuracy of the mathematical model.
Original language | English |
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Title of host publication | 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 1-8 |
Number of pages | 8 |
ISBN (Electronic) | 9781728175836 |
DOIs | |
State | Published - Jun 21 2021 |
Event | 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021 - Chicago, United States Duration: Jun 21 2021 → Jun 25 2021 |
Publication series
Name | 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021 |
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Conference
Conference | 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021 |
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Country/Territory | United States |
City | Chicago |
Period | 06/21/21 → 06/25/21 |
Funding
This manuscript has been authored by Oak Ridge National Laboratory, operated by UT-Battelle LLC under contract No. DE-AC05-00OR22725 with the US 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 nonexclusive, 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 DOE 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). This research used resources available at the Power Electronics and Electric Machinery Laboratory located at the National Transportation Research Center, a DOE EERE User Facility operated by the Oak Ridge National Laboratory (ORNL). This study is based upon the work supported by the U.S. Department of Energy (DOE), Vehicle Technologies Office (VTO). Authors would like to thank Mr. Lee Slezak of U.S. DOE-VTO, Mr. Jason Conley of National Energy Technology Laboratory (NETL), and Dr. David Smith of ORNL for their support and guidance on this work.
Keywords
- Electric vehicle charging
- Sensitivity analysis
- Wireless power transfer