基于PEEC的阵列解耦式WPT系统设计与研究  

Design and Research on Array Decoupling WPT System Based on PEEC

作　　者：李方深 夏能弘 张帆 许肖颖 LI Fang-shen;XIA Neng-hong;ZHANG Fan;XU Xiao-ying(Shanghai University of Electric Power,Shanghai 200090,China)

机构地区：[1]上海电力大学,电气工程学院,上海200090 [2]国网安徽省电力有限公司庐江县供电公司,安徽合肥231500

出　　处：《电力电子技术》2023年第10期73-76,112,共5页Power Electronics

基　　金：国家自然科学基金(51607110)。

摘　　要：为实现给多个小型电子设备灵活充电,此处设计了一种基于正六边形线圈单元结构的三层交错排布阵列式线圈结构。其主体结构为中间层布置一个线圈,首层与底层分别对称排布3个线圈,且每层线圈间两两解耦。采用部分元等效电路法(PEEC)提取正六边形线圈的电感参数,构建相邻线圈的交叉位置与互感的关系,模型计算表明,当相邻线圈间重叠尺寸为32.42 mm时,线圈实现解耦;在主线圈中设计串联的副线圈来实现单元线圈的耦合磁场均匀分布,该设计使单元线圈与负载间的互感提升约40%。最后提出一种负载坐标定位方法,通过定位负载中心与阵列交错线圈的位置,可启动单线圈、双线圈或三线圈发射模式,实验验证阵列结构可确保负载在不同位置时能够可靠供电。In order to flexibly charge multiple small electronic devices,a three-layer staggered array coil structure is designed based on a regular hexagonal coil unit structure.Its main structure is to arrange a coil in the middle layer,arrange three coils symmetrically in the first layer and the bottom layer,and decouple two coils in each layer.The partial element equivalent circuit method(PEEC)is used to extract the inductance parameters of regular hexagonal coils,and the relationship between the cross position of adjacent coils and mutual inductance is constructed.The model calculation shows that when the overlap size between adjacent coils is 32.42 mm,the coils achieve decoupling.A series connected secondary coil is designed in the main coil to achieve uniform distribution of the coupling magnetic field of the unit coil.This design increases the mutual inductance between the unit coil and the load by about 40%.Finally,a load coordinate positioning method is proposed.By positioning the load center and the staggered coil position of the array,single coil,double coils,or three coils emission modes can be activated.Experimental verification shows that the array structure can ensure reliable power supply for loads at different positions.

关 键 词：无线电能传输 部分元等效电路法 线圈 解耦 

分 类 号：TM724[电气工程—电力系统及自动化]