太赫兹科学与电子信息学报, 2020, 18 (3): 435, 网络出版: 2020-07-16
非铁磁性介质中的磁谐振无线传能系统仿真
Simulation of magnetic resonance wireless power transfer system in non-ferromagnetic medium
等效电路 非铁磁性介质 磁耦合谐振 传输效率 无线能量传输 equivalent circuit non-ferromagnetic medium magnetic coupling resonance transmission efficiency wireless power transmission
摘要
理论上磁谐振无线能量传输可以做到很高的效率,然而在实际情况下由于各种各样介质的影响,实测效率与理论值难以保持良好的一致性。为了解决实测效率与理论效率偏差较大的问题,提出了基于等效电路模型的 非铁磁性介质中的磁谐振无线能量传输系统。从计算与仿真角度分析了不同介质的对线圈阻抗与谐振频率的影响,且计算与仿真结果吻合良好。提出了介质中高效率系统的设计步骤,优化后仿真结果表明可以提高 30%以上 的效率。
Abstract
Theoretically, magnetic resonance wireless power transmission can achieve high efficiency. However, due to the influence of various media, a large deviation exists between the measured efficiency and the theoretical efficiency. A magnetic resonant wireless power transmission system in non-ferromagnetic medium is proposed based on the equivalent circuit model. The influences of different media on the coil impedance and resonance frequency are analyzed by calculation and simulation, and the results of calculation and simulation are in good agreement. The design steps of the high efficiency system in the medium are proposed, and the simulation results show that the efficiency can be improved by more than 30% after optimization.
石磊, 黄卡玛, 杨阳. 非铁磁性介质中的磁谐振无线传能系统仿真[J]. 太赫兹科学与电子信息学报, 2020, 18(3): 435. SHI Lei, HUANG Kama, YANG Yang. Simulation of magnetic resonance wireless power transfer system in non-ferromagnetic medium[J]. Journal of terahertz science and electronic information technology, 2020, 18(3): 435.