Study on High Efficient Electric Vehicle Wireless Charging System

2016 International Conference on New Energy and Future Energy System

Chen, H.X.^1 ; Liu, Z.Z.^1 ; Zeng, H.^1 ; Qu, X.D.^1 ; Hou, Y.J.^2

School of Electrical Engineering, Shandong University, Jinan

250061, China^1

Shandong Academy of Sciences, LiXia District, Jinan

250061, China^2

关键词: Coupling coefficient;    Efficiency characteristic;    Experiment platforms;    Level of automations;    Load characteristics;    Resonant structures;    Wireless charging system;    Wireless power supplies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/40/1/012009/pdf
DOI  :  10.1088/1755-1315/40/1/012009

来源: IOP

【 摘 要 】

Electric and unmanned is a new trend in the development of automobile, cable charging pile can not meet the demand of unmanned electric vehicle. Wireless charging system for electric vehicle has a high level of automation, which can be realized by unmanned operation, and the wireless charging technology has been paid more and more attention. This paper first analyses the differences in S-S (series-series) and S-P (series-parallel) type resonant wireless power supply system, combined with the load characteristics of electric vehicle, S-S type resonant structure was used in this system. This paper analyses the coupling coefficient of several common coil structure changes with the moving distance of Maxwell Ansys software, the performance of disc type coil structure is better. Then the simulation model is established by Simulink toolbox in Matlab, to analyse the power and efficiency characteristics of the whole system. Finally, the experiment platform is set up to verify the feasibility of the whole system and optimize the system. Based on the theoretical and simulation analysis, the higher charging efficiency is obtained by optimizing the magnetic coupling mechanism.