%0 Electronic Article
%A Jinbo Zhao
%A Cheng Luo
%A Siyuan Ma
%A Qiaopo Xiong
%A Jie He
%A Miao Yang
%A Heng Wang
%A Gen Long
%A Xiaobo Zhao
%A Chao Song
%A Hongsheng Hu
%A Tao Cai
%K wide misalignment tolerance
%K general mutual model
%K power transmission process
%K frequency splitting characteristics
%K DC–DC transmission efficiency
%K frequency splitting phenomenon
%K complex ratio transformer model
%K wireless power transmission
%K stable transmission power
%K constant output power
%K frequency splitting point
%K magnetic resonant WPT control method
%K high misalignment tolerance
%K approximately constant voltage gain
%X Many applications of wireless power transmission (WPT) require high misalignment tolerance. However, the transmission power of WPT is highly susceptible to the misalignment. To solve this problem, the magnetic resonant WPT control method with high misalignment tolerance is proposed here. First, based on the general mutual model, the complex ratio transformer model is established. This model gives an intuitive physical picture in power transmission process and frequency splitting phenomenon. Second, approximately constant voltage gain at frequency splitting point in a wide range of misalignment is analysed. Considering this frequency splitting characteristics of Magnetic resonant WPT, the maximum peak point tracking control methods for wide misalignment, maintaining constant output power is proposed. Finally, the corresponding simulation and experimental validation is given, demonstrating the feasibility of the control method. When the misalignment reached 40%, the fluctuation of the output voltage will be <4%, the DC–DC transmission efficiency will be enhanced to 80%.
%T Control method of magnetic resonant WPT maintaining stable transmission power with wide misalignment tolerance
%B The Journal of Engineering
%D November 2018
%I Institution of Engineering and Technology
%U https://digital-library.theiet.org/;jsessionid=9uuodd7qiktri.x-iet-live-01content/journals/10.1049/joe.2018.8563
%G EN