Abstract
In this study, a novel three-phase Oak Ridge ac to ac converter is introduced for wireless mobility energy storage system (WMESS) applications for grid support or ancillary service applications. The proposed topology can be used in bidirectional operation between ac grid and ac terminals of energy storage (output of the ESS inverter) by accomplishing unity power factor. Inherent merit of the technology is that it can directly merge ac input 60 Hz grid frequency with the high frequency by superimposing them with the Oak Ridge Converter (ORC) and through the wireless coils. Theoretical and simulation results are provided for 10 kW output power. The functionality of the proposed three-phase system is demonstrated with the coupling coils separated by 6 inches of air gap with the input / output of 277 VAC, RMS. The system overall design is presented, and simulation results demonstrate achieving 3% current total harmonic distortion (THD) and 0.99 power factor (PF) at full load of 10 kW wireless power transfer.
| 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 | 758-764 |
| 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 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
- Bi-directional
- Converter
- ESS
- Grid
- Grid support
- High frequency
- Mobile
- Oak Ridge
- Resonant
- Wireless