Design of Range Adaptive Wireless Power Transfer System Using Non-coaxial Coils

2017 2nd Asia Conference on Power and Electrical Engineering

能源学;电工学

Yang, Dongsheng^1 ; Won, Sokhui^1 ; Hong, Huan^1

College of Information Science and Engineering, Northeastern University, NO. 3-11, Wenhua Road, Heping District, Shenyang, China^1

关键词: Coaxial configuration;    Coupling coefficient;    Frequency splittings;    Harsh environment;    Power transfers;    Transmission efficiency;    Wireless power transfer;    Wireless power transfer (WPT);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/199/1/012008/pdf
DOI  :  10.1088/1757-899X/199/1/012008

来源: IOP

【 摘 要 】

Wireless Power Transfer (WPT) is a remarkable technology because of its convenience and applicability in harsh environment. Particularly, Magnetic Coupling WPT (MC-WPT) is a proper method to midrange power transfer, but the frequency splitting at over-coupling range, which is related with transfer distance, is challenge of transmission efficiency. In order to overcome this phenomenon, recently the range adaptive WPT is proposed. In this paper, we aim to the type with a set of non-coaxial driving coils, so that this may remove the connection wires from PA (Power Amplifier) to driving coil. And, when the radius of driving coil is changed, on the different gaps between driving and TXcoils, coupling coefficient between these is computed in both cases of coaxial and non-coaxial configurations. In addition, the designing steps for 4-coil WPT system using non-coaxial coils are described with the example. Finally, the reliability of this topology has been proved and simulated with PSPICE.