基于过孔调节的多频超材料在无线能量传输中的应用  

Application of Multi-Frequency Metamaterials Based on Connection Holes Adjustment in Wireless Power Transfer

作　　者：张靖 曹鹏飞[1] 郝钟秀 付鹏程 程琳[1] 李平 ZHANG Jing;CAO Pengfeng;HAO Zhongxiu;CHEN Lin;FU Pengcheng;LI Ping(School of Information Science&Engineering,Lanzhou University,Lanzhou Gansu 730000,China)

机构地区：[1]兰州大学信息科学与工程学院,甘肃兰州730000

出　　处：《传感技术学报》2021年第4期556-561,共6页Chinese Journal of Sensors and Actuators

基　　金：甘肃省自然科学基金项目(20JR10RA614)。

摘　　要：针对无线能量传输中超材料工作在单一频点的特性,提出过孔调节的方式来改变超材料的谐振频点,在15 MHz~35 MHz频段实现超材料的三个频点响应。将过孔调节的超材料引入两线圈的磁耦合谐振式无线能量传输(Magnetic Resonance-Coupled Wireless Power Transfer,MRC-WPT)系统中,根据超材料的多频点响应,调节发射端和接收端的补偿电容,多频点超材料在谐振系统的不同距离处选择不同频点响应实现能量的最大传输。超材料过孔调节方式简单易操作,仿真和实验的结果表明,超材料不仅将MRC-WPT系统传输效率提升了37%,而且多频点超材料通过选频在一定距离内使系统的传输效率均达到60%以上。Aiming at the characteristics of metamaterials working at a single frequency in wireless power transfer,a method of changing the resonance frequency of metamaterials based on via adjustment is proposed,where the three frequency responses of metamaterials are realized in the 15 MHz~35 MHz frequency band.Introducing the metamaterials based on connection holes adjustment into the two-coils Magnetic Resonance-Coupled Wireless Power Transfer(MRC-WPT)system,maximum energy transmission at different distances can be achieved by matching the compensation capacitors of the transmitter and receiver according to the multi-frequency response of the metamaterials.This method is simple and easy to operate.The simulation and experimental results show that the transmission efficiency of the MRC-WPT system based on this metamaterials can not only be incresead of 37%,but also remain above 60%within a certain distance through frequency selection.

关 键 词：无线能量传输 超材料 过孔调节 多频点响应 

分 类 号：TM724[电气工程—电力系统及自动化]