Wirelessly powered motor operation in dynamic scenarios using non-Hermitian parity-time symmetry
Abstract Motors arise as a heart of the mobility society, and wirelessly operated motors may improve our standard of living. Wireless power transfer in the kilohertz and megahertz range has been extensively explored, finding various potential applications in consumer electronics, electric vehicles,...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-12-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-47842-x |
| _version_ | 1797398006887088128 |
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| author | Shrinathan Esaki Muthu Pandara Kone Kenichi Yatsugi Hideo Iizuka |
| author_facet | Shrinathan Esaki Muthu Pandara Kone Kenichi Yatsugi Hideo Iizuka |
| author_sort | Shrinathan Esaki Muthu Pandara Kone |
| collection | DOAJ |
| description | Abstract Motors arise as a heart of the mobility society, and wirelessly operated motors may improve our standard of living. Wireless power transfer in the kilohertz and megahertz range has been extensively explored, finding various potential applications in consumer electronics, electric vehicles, and medical implants. However, stable operation of wirelessly powered motors remains challenging due to voltage fluctuations for motors occurring in dynamic scenarios, e.g., the rotating speed of the motors is varied. Here, we theoretically and experimentally demonstrate the operation of a motor, where the power is wirelessly transferred via coils, is robust against the rotating speed by employing the analogy with non-Hermitian parity-time (PT) symmetry. In addition, our system is robust for misalignment of the coils. Our results open up opportunities for the robust operation of motors via wireless power transfer in dynamic scenarios towards autonomous vehicles. |
| first_indexed | 2024-03-09T01:19:26Z |
| format | Article |
| id | doaj.art-4f6139eaee784e7e976d4f9ff2640be1 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-09T01:19:26Z |
| publishDate | 2023-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-4f6139eaee784e7e976d4f9ff2640be12023-12-10T12:15:43ZengNature PortfolioScientific Reports2045-23222023-12-0113111110.1038/s41598-023-47842-xWirelessly powered motor operation in dynamic scenarios using non-Hermitian parity-time symmetryShrinathan Esaki Muthu Pandara Kone0Kenichi Yatsugi1Hideo Iizuka2Toyota Central R&D Labs, Inc.Toyota Central R&D Labs, Inc.Toyota Central R&D Labs, Inc.Abstract Motors arise as a heart of the mobility society, and wirelessly operated motors may improve our standard of living. Wireless power transfer in the kilohertz and megahertz range has been extensively explored, finding various potential applications in consumer electronics, electric vehicles, and medical implants. However, stable operation of wirelessly powered motors remains challenging due to voltage fluctuations for motors occurring in dynamic scenarios, e.g., the rotating speed of the motors is varied. Here, we theoretically and experimentally demonstrate the operation of a motor, where the power is wirelessly transferred via coils, is robust against the rotating speed by employing the analogy with non-Hermitian parity-time (PT) symmetry. In addition, our system is robust for misalignment of the coils. Our results open up opportunities for the robust operation of motors via wireless power transfer in dynamic scenarios towards autonomous vehicles.https://doi.org/10.1038/s41598-023-47842-x |
| spellingShingle | Shrinathan Esaki Muthu Pandara Kone Kenichi Yatsugi Hideo Iizuka Wirelessly powered motor operation in dynamic scenarios using non-Hermitian parity-time symmetry Scientific Reports |
| title | Wirelessly powered motor operation in dynamic scenarios using non-Hermitian parity-time symmetry |
| title_full | Wirelessly powered motor operation in dynamic scenarios using non-Hermitian parity-time symmetry |
| title_fullStr | Wirelessly powered motor operation in dynamic scenarios using non-Hermitian parity-time symmetry |
| title_full_unstemmed | Wirelessly powered motor operation in dynamic scenarios using non-Hermitian parity-time symmetry |
| title_short | Wirelessly powered motor operation in dynamic scenarios using non-Hermitian parity-time symmetry |
| title_sort | wirelessly powered motor operation in dynamic scenarios using non hermitian parity time symmetry |
| url | https://doi.org/10.1038/s41598-023-47842-x |
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