基于无线电能传输技术的电动汽车V2G系统关键参数监测技术

Key parameter monitoring technique for electric vehicle V2G system based on wireless power transfer technology

将无线电能传输技术应用于电动汽车入网(V2G)领域具有重要的研究价值及实用价值。对双向无线电能传输系统的原理进行了分析,在此基础上针对影响系统能量传输方向的相角差和影响传输效率的电压比展开了分析;进一步提出在次级侧与主功率线圈同轴安装探测线圈的方法对上述两参数进行实时监测,给出了参数的获取方法,并设计了仿真与实验验证所提方法的可行性。

The application of wireless power transfer technology in the field of electric vehicle V2G（ Vehicle to Grid）has important theoretical and practical values. The principle of the bi-directional wireless power transfer system is analyzed,based on which,the phase angle difference affecting the power transfer direction and the voltage ratio affecting the transfer efficiency are discussed. The above two parameters are monitored real-timely by installing probe coils on the secondary side coaxially with the primary coil,and the method of obtaining the parameters is given. Simulation and experiment are designed to verify the feasibility of the proposed method.