移动式无线充电系统中的通信技术应用研究

Research on Application of Communication Technology in Mobile Wireless Charging System for Electric Vehicle

电动汽车移动式无线充电是在路面下方铺设供电线圈,利用电磁感应原理,在车载端通过接收线圈和电力电子变换控制电路,给行驶中的电动汽车实时补充电能。作为一种实时性要求较强的动态无线电能传输系统,电动汽车移动式无线充电系统各个环节之间,尤其是行驶中的车辆和地面充电设施之间需要高效、稳定、可靠、快速的信息交互。文章以移动式无线充电实验路段项目为背景,首先介绍了移动式无线充电系统总体架构,分析其对信息交换和通信系统的技术需求,然后在此基础上给出通信系统的设计方案及各部分的功能,最后阐述了用于车辆位置和行驶方向识别的磁通信技术以及用于车辆和地面监控系统信息交互的无线通信技术。

The mobile wireless charging system for electric vehicles is to lay the power supply coil under the road surface, and use the principle of electromagnetic induction to supply electric energy to the running electric vehicle in real time through the receiving coil and the power electronic circuit at the vehicle end. As a dynamic wireless energy transmission system with strong real-time requirements, efficient, stable, reliable and fast information interaction between various parts of the electric vehicle mobile wireless charging system, especially between moving vehicles and ground charging facilities is necessary. Based on the mobile wireless charging experimental section project, at first, the overall architecture of the mobile wireless charging system is introduced, and technical requirements for information exchange and communication systems are analyzed. Furthermore, the design of the communication system and its function is given. Finally, the magnetic communication technology for vehicle position and driving direction identification, and the wireless communication technology for information exchange between vehicle and ground monitoring system are proposed.