Abstract
This study presents a novel bidirectional concept by using Oak Ridge Converter (ORC) for wireless energy conversion (WEC) technologies such as wireless electric vehicle (EV) chargers, wireless mobile or energy storage systems (MESS/ESS), etc. The presented system can be deployed in a bidirectional wireless power transfer (WPT) structure for different input voltages by using two different operating frequencies. The proposed concept here achieves zero voltage switching (ZVS) in during step-up and step-down configurations. The system overall theoretical design and experimental test results are presented for 50 kW power transfer in both bidirectional operations modes. The laboratory demonstration of the system is presented for the three-phase bidirectional system with 6 inches of airgap between the coils and output of 560 VDC with 95.4% dc-to-dc efficiency.
| Original language | English |
|---|---|
| Pages | 469-473 |
| Number of pages | 5 |
| DOIs | |
| State | Published - 2022 |
| Event | 37th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2022 - Houston, United States Duration: Mar 20 2022 → Mar 24 2022 |
Conference
| Conference | 37th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2022 |
|---|---|
| Country/Territory | United States |
| City | Houston |
| Period | 03/20/22 → 03/24/22 |
Funding
This project is funded by Oak Ridge National Laboratory's Laboratory Directed Research and Development (LDRD) Program's Transformational Energy Science and Technology (TEST) initiative with the project ID LOIS-9505. This research used resources available at the Power Electronics and Electric Machinery Research Center located 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 the TEST Initiative Lead, Dr. Ilias Belharouak for his support of this work and his guidance. Authors also acknowledge the support and guidance of ORNL Sustainable Transportation Program Manager, Dr. Rich Davies, which is greatly appreciated. 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).
| Funders | Funder number |
|---|---|
| Oak Ridge National Laboratory | |
| U.S. Department of Energy | |
| Laboratory Directed Research and Development | LOIS-9505 |
Keywords
- Oak Ridge Converter
- bidirectional
- converter
- high frequency
- resonant
- step-up/step-down converter
- wireless power transfer
