摘要
针对电动汽车磁电式动态无线电力传输系统电磁辐射严重和成本高等问题,本文中利用轮胎内置钢带与地面铜箔之间的板间电容,建立了经胎电场耦合式电力传输(ECPT)系统,实现车辆行驶过程中的动态无线电力传输。首先分析了轮胎与地面铜箔之间的板间电容情况,接着根据电容耦合双谐振拓扑结构二端口网络的阻抗匹配情况分析了板间电容和工作频率等对ECPT系统负载功率和传输效率的影响,并给出了ECPT系统的电路拓扑设计和参数优化方法。最后通过仿真和实验,验证了ECPT系统的实际效果,实现了60W的无线电力传输。
In view of the serious electromagnetic radiation and high cost of the dynamic magneto-electric wireless power transfer system in electric vehicle, a via-tire electric-field coupled power transfer (ECPT) system is built in this paper by utilizing the inter-board capacitance between the steel belt in tire and the copper plate in ground, to achieve the dynamic wireless power transfer in the course of vehicle driving. Firstly, the inter-board capacitance between the steel belt in tire and the copper plate in ground is analyzed. Then the effects of inter-board capacitance and operating frequency on load power and transmission efficiency are analyzed based on the impedance matching of 2-port network, as the double-resonant topology structure of capacitive coupling, and the methods of circuit topology design and parameter optimization of ECPT system are given. Finally, simulation and experiment are conducted to verify the actual effects of ECPT system, indicating that the wireless power transmission of 60 W is achieved.
作者
陈新
黄守道
Chen Xin;Huang Shoudao(College of Electrical and Information Engineering, Hunan University, Changsha 410082;College of Energy and Mechanical Engineering, Hunan University of Humanities, Science and Technology, Loudi 417000)
出处
《汽车工程》
EI
CSCD
北大核心
2019年第10期1145-1151,共7页
Automotive Engineering
基金
国家自然科学基金(61104088)
湖南省自然科学基金(2016JJ4043)
湖南省教育厅青年项目(16B137)
娄底市科技计划项目资助
关键词
电场耦合
无线电力传输
轮胎钢带
电容耦合
阻抗匹配
electric-field coupling
wireless power transfer
tire steel belt
capacitive coupling
impedance matching
