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Transfer characteristics analysis of bilayer coil structures for wireless power transfer systems
Journal of Power Electronics ( IF 1.4 ) Pub Date : 2021-03-08 , DOI: 10.1007/s43236-021-00231-x
Yang Li , Jing-nan Ma , Shao-bo Shi , Yue-peng Huang , Rui Wang , Jia-ming Liu , Xin Ni

Although bilayer coil structures can satisfy the application requirements for inductively coupled power transfer (ICPT) systems in practice, the transfer characteristics of systems (e.g., transfer power, transfer efficiency, and misalignment tolerance) under external interference are seldom studied. In this paper, an equivalent model of a wireless power transfer (WPT) system with a bilayer coils structure was established, and the influences of coil structures on transfer power and efficiency were analyzed. Then, the bilayer coil structures were modeled through multi-physics simulations, the applicable range was determined, and the influences of the coil structures on the transfer performance were studied in detail. Finally, an experiment prototype was set up, and experimental results showed that the coupling coil structures has an obvious effect on the transfer performance. The research in this paper is beneficial for the operation safety and reliability of WPT systems.



中文翻译:

无线电力传输系统双层线圈结构的传输特性分析

尽管双层线圈结构在实践中可以满足电感耦合功率传输(ICPT)系统的应用要求,但很少研究系统在外部干扰下的传输特性(例如,传输功率,传输效率和未对准公差)。本文建立了具有双层线圈结构的无线电力传输(WPT)系统的等效模型,并分析了线圈结构对传输功率和效率的影响。然后,通过多物理场仿真对双层线圈结构进行建模,确定其适用范围,并详细研究了线圈结构对传输性能的影响。最后,建立了一个实验原型,实验结果表明,耦合线圈结构对传输性能有明显的影响。本文的研究有益于WPT系统的运行安全性和可靠性。

更新日期:2021-03-08
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