Abstract
The dynamic wireless power transfer (DWPT) or in-motion charging of electric vehicles (EVs) may alleviate the challenges encountered by the plug-in charging systems and assist in the penetration of the EVs at a larger scale. Similar to its stationary charging counterpart, DPWT also makes use of compensation circuits to reduce the inductive reactance for enabling higher current on the coupler winding and improve the power transfer. However, the behavior of compensation circuits has not been comprehensively analyzed in a DWPT system. This paper analyzes in detail the performance of three compensation topologies applied to the DWPT system. A combination of finite element analysis (FEA) and circuit analysis is employed to study the compensation topologies when the receiving coil moves over the transmitting coil. Moreover, the variations in operating frequency have also been considered in the analysis. Furthermore, the theoretical calculations for the dynamic WPT system are verified using PLECS simulation model.
| 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 | 284-289 |
| Number of pages | 6 |
| 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 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), Dr. David Smith and Dr. Burak Ozpineci of ORNL for their support and guidance on 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
- Inductive charging
- dynamic wireless power transfer (DWPT)
- electric vehicle
- sensitivity analysis