Abstract
In this paper, a novel three-phase converter is proposed for ac to dc wireless power transfer (WPT) systems for electric vehicle (EV) charging applications. The proposed innovative solution, called as Oak Ridge Converter, reduces the design complexity and cost by eliminating the front-end converter stage compared to the conventional systems. Additionally, grid side requirements can be met with the proposed creative concept. In this concept, the three-phase single-stage Oak Ridge Converter directly converts the 60 Hz grid frequency into high-frequency voltage and utilizes hybrid grid-source and high-frequency to realize power transfer from AC source through resonant network and coupling coils to the battery load. Simulation validation of the proposed three-phase system is currently being carried on and the results will be will be provided to validate the theoretical studies with the input of 277 VAC, RMS and output of 675 VDC at 35 kW power. The system current total harmonic distortion (THD) is measured 5% with a power factor (PF) of 0.98 and overall hardware development of the system that will be used for experiments is presented.
| Original language | English |
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| Title of host publication | 2021 IEEE Applied Power Electronics Conference and Exposition, APEC 2021 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 437-443 |
| Number of pages | 7 |
| ISBN (Electronic) | 9781728189499 |
| DOIs | |
| State | Published - Jun 14 2021 |
| Event | 36th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2021 - Virtual, Online, United States Duration: Jun 14 2021 → Jun 17 2021 |
Publication series
| Name | Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC |
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Conference
| Conference | 36th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2021 |
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| Country/Territory | United States |
| City | Virtual, Online |
| Period | 06/14/21 → 06/17/21 |
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 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).
Keywords
- Charger
- Converter
- EV
- Grid
- High frequency
- Oak Ridge
- Resonant
- Wireless