无线电能传输的平面螺旋线圈优化  

Optimization of Planar Spiral Coil for Wireless Power Transmission

作　　者：韩成建 陈为[1] HAN Chengjian;CHEN Wei(College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]福州大学电气工程与自动化学院,福州350108

出　　处：《电源学报》2020年第5期173-179,共7页Journal of Power Supply

基　　金：国家自然科学基金资助项目(51777036)。

摘　　要：磁耦合线圈是无线电能传输中至关重要的一个环节,线圈品质因数往往是衡量线圈优劣的重要指标。基于一维线圈损耗模型分析了线圈宽度、高度和磁场强度等重要参数对损耗的影响。以此为基础,借助有限元仿真软件得到线圈磁场分布规律。首先对线圈采用渐变线宽的方案来优化线圈Q值,进一步采用将内3匝及最外匝线圈进行铜箔垂直置换的方案,优化内3匝及最外匝线圈的损耗。通过仿真与实验验证了方案的正确性。Magnetic coupling coil is a crucial link in wireless power transmission,and the quality factor of a coil is usually an important index to evaluate its quality.Based on a one-dimensional coil loss model,the effects of coil width,coil height,magnetic field strength and other important parameters on loss are analyzed.On this basis,the distribution law of coil magnetic field is obtained using a finite element simulation software.First,the scheme of variable coil width is used to optimize the coil’s Q value.Then,a novel scheme is adopted,in which copper foil vertical replacement is performed on the inner three turns and the outmost turn,which can optimize the coil loss on the inner three turns and the outmost turn.Simulation and experimental results verified the proposed scheme.

关 键 词：无线电能传输 平面螺旋线圈 变线宽 铜箔置换 

分 类 号：TM241[一般工业技术—材料科学与工程]