非线性铁磁谐振无线电能传输拓扑结构  

Nonlinear Ferro-resonance Topology of Wireless Power Transfer

作　　者：樊京[1] 李定珍[1] 杨旭[1] FAN Jing;LI Dingzhen;YANG Xu(School of Information Engineering,Nanyang Institute of Technology,Nanyang 473004,China)

机构地区：[1]南阳理工学院信息工程学院,南阳473004

出　　处：《电源学报》2023年第6期7-14,共8页Journal of Power Supply

摘　　要：针对负载和耦合系数均有可能大范围变化的实际工况,提出一种新型的基于铁磁谐振的非线性无线电能传输拓扑结构。首先,使用杜芬方程和相量分析法对工作原理进行定性分析;其次,使用有限元电路仿真软件对上述原理进行数值验证计算;最后,搭建了功率可达566 W、效率可达93.5%的非线性拓扑无线电能传输系统原型。实验结果表明,在次级稳压输出200 V的条件下,提出的非线性LCC-LCC拓扑能够适应耦合系数从0.1变化到0.5、负载电阻从72Ω到无穷大的大范围变化,具有出色的抗偏移能力和负载稳定性。所提拓扑原理新颖、结构简单,具备一定的工程应用潜力。For practical conditions where both the load and coupling coefficient may vary obviously,a novel nonlinear topology of wireless power transfer(WPT)based on ferro-resonance is proposed.First,the working principle is qualitatively analyzed using the Duffing equation and phasor analysis method.Second,the finite element software for circuit simulation is used to verify the principle.Finally,a prototype of nonlinear topological WPT system with power up to 566 W and efficiency up to 93.5%was built.Experimental results show that the proposed nonlinear LCC-LCC topology can tolerate the drastic changes in coupling coefficient from 0.1 to 0.5 and load resistance from 72Ωto infinity under 200 V secondary output voltage,indicating an excellent anti-misalignment capability and load stability.With a novel principle and a simple structure,the proposed topology has the potential to be applied in engineering.

关 键 词：铁磁谐振 非线性 无线电能传输 相量分析法 杜芬方程 

分 类 号：TM724[电气工程—电力系统及自动化]