期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 33, 期 4, 页码 3325-3332出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2017.2703591
关键词
Magnetic device; metamaterial; transformation optics; wireless energy transfer
资金
- National Natural Science Foundation of China [91233208, 60990322, 11604292]
- National High Technology Research and Development Program (863 Program) of China [2012AA030402]
- fundamental research funds for the central universities [2017FZA5001]
- Program of Zhejiang Leading Team of Science and Technology Innovation
- Postdoctoral Science Foundation of China [2013M541774]
- Preferred Postdoctoral Research Project - Zhejiang Province [BSH1301016]
- Swedish VR Grant [621-2011-4620]
- AOARD
A magnetic translational projector (MTP) designed by transformation optics is applied to improve energy transfer efficiency in a wireless power transfer (WPT) system. Our numerical simulation results showtheMTP can greatly enhance energy transfer efficiency (e.g., nearly two orders, compared to the case without our MTP) in the WPT system, which is much larger than that of a previous method (i.e., using magnetic super-lens). A 3-D reduced MTPcomposed of layered isotropicmagnetic materials is designed, whose performance is verified by our 3-D numerical simulation in 10 MHz. The influence of loss in metamaterial on the performance of the proposed MTP is also studied, which shows that the MTP can still enhance energy transfer efficiency when loss exists. Further simulation is also carried out to show that the function of the MTP is not sensitive to large perturbation. Finally, detailed experimental suggestion for implementing the simplified MTP, which is composed of layered medium is given and then verified by our numerical simulation.
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