电动汽车无线电能传输系统的定位系统研究

Analysis of the Positioning System for the Electric Vehicle Wireless Energy Transmission System

电动汽车无线充电技术以其安全、便捷、可靠等一系列优点得到广大用户的青睐,而电能传输效率受限问题成为其进一步发展的瓶颈。文章通过对无线电能传输原理分析和实验发现,耦合线圈间距及其正对面积大小严重影响系统效率。为此,文章提出了一种电动汽车无线电能传输系统的定位方法,介绍了定位系统结构及与之相应的控制流程,通过对耦合线圈的定位,达到提高无线电能传输系统整体效率目的。实验结果表明,对耦合线圈间距和耦合线圈正对面积进行合理的控制,可将传输效率成倍提高。

The electric vehicle wireless charging technology is favored by a large number of users due to a series of advantages such as safety,convenience and reliability,while the problem of limited power transmission efficiency has become a bottleneck for its further development.It analyzed the principles of wireless energy transmission and experiments,and found that the distance between coupling coils and the facing size of coils have a great effect on the system efficiency.Based on this,this paper proposed a positioning system structure of the electric vehicle wireless energy transmission system and the corresponding control flow.By positioning the coupling coils,the overall efficiency of the wireless energy transmission system is improved.The experimental results show that reasonable control of the coupling coil spacing and the direct area of the coupling coil can be double of the transmission efficiency.