Efficiency Analysis of Magnetically Coupled Resonant Superconducting Wireless Power Transfer System
It proposed a superconducting-copper magnetic coupling resonant wireless power transfer (WPT) system. The transmitting coil uses superconducting materials and the receiving coil uses copper materials, which makes the WPT system have high transfer efficiency. Firstly, the principle of magnetically co...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Control and Information Technology
2020-01-01
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| Series: | Kongzhi Yu Xinxi Jishu |
| Subjects: | |
| Online Access: | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2096-5427.2020.03.008 |
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| Summary: | It proposed a superconducting-copper magnetic coupling resonant wireless power transfer (WPT) system. The transmitting coil uses superconducting materials and the receiving coil uses copper materials, which makes the WPT system have high transfer efficiency. Firstly, the principle of magnetically coupled resonant WPT was analyzed, then the resistance of superconducting coil and copper coil was measured and the relationship between quality factor and frequency was calculated and analyzed. Finally, the transfer efficiency of superconducting-copper magnetically coupled resonant WPT system was experimentally measured, and using the conventional copper coil as a control group, the relationship between transfer efficiency and axial or radial offset distance was analyzed. Experimental results show that application of superconducting coils can significantly improve transfer efficiency of system; compared with the copper WPT system, the supper conducting WPT system has an efficiency improvement of at least 12.4% during axial offset, an efficiency increase of at least 11.3% during radial offset. The transfer efficiency of the supperconducting WPT system is almost unchanged when the radial distance is short (1~4 cm), and these performances indicate that the magnetic coupling resonance superconducting WPT system has broad prospects in the field of electric vehicles or transportation. |
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| ISSN: | 2096-5427 |