摘要
为解决多中继线圈无线电能传输(WPT)系统中存在的交叉耦合问题,这里设计了一组磁交叉解耦的线圈结构,在多级中继线圈中插入一层特殊的屏蔽材料,以抑制非相邻线圈的耦合,同时保持相邻线圈间耦合较强。进一步地,选取LCC-Multi-S型拓扑,分析了交叉解耦双中继系统的频率特性、输出特性及负载特性,仿真和实验验证了这种交叉解耦线圈结构的有效性,抑制了频率漂移,提升了系统效率和稳定性。
In order to solve the cross-coupling problem in the multi relay wireless power transfer(WPT) system,a kind of magnetic cross-decoupling coils structure is designed.A layer of special shielding material is inserted into the multi relay coils to suppress the coupling of non-adjacent coils and keep the coupling between adjacent coils unchanged.Furthermore,LCC-Multi-S topology is selected to analyze the frequency characteristics,output characteristics and load characteristics of the cross-decoupling dual relay system.Simulation and experiment verify the effectiveness of the crossdecoupling coil structure,which can restrain the frequency drift and improve the efficiency and stability of the system.
作者
徐妍
王成亮
李军
王宁
XU Yan;WANG Cheng-liang;LI Jun;WANG Ning(Jiangsu Fangtian Electric Power Technology Co.,Ltd.,Nanjing 211100,China)
出处
《电力电子技术》
CSCD
北大核心
2022年第1期40-42,共3页
Power Electronics
关键词
无线电能传输
多中继线圈
交叉解耦
频率漂移
wireless power transfer
multi relay coils
cross-decoupling
frequency drift
