摘要
为提高电动汽车无线充电系统耦合能力以增强系统的传输效率,总结了现有的无线电能传输(WPT:Wireless Power Transmission)方式,分析了基于磁感应耦合电能传输(ICPT:Inductive Coupled Power Transfer)技术的电动汽车无线充电系统的工作原理,建立了带有磁芯的ICPT系统互感计算模型,对系统互感与磁芯属性、线圈属性、轴偏移距离的关系以及不同结构松耦合变压器的磁屏蔽效果进行了仿真分析。结果表明,磁芯属性对系统互感的影响有上限,而线圈属性对系统互感的影响无上限,发射端摆放条形磁芯且接收端摆放圆盘形磁芯的ICPT系统能满足电动汽车无线充电系统的电源需求和电磁屏蔽要求。
In order to improve the coupling capability enhance the transmission efficiency of the system, of electric vehides involving wireless charging system to we summarized the existing WPT （Wireless Power Transmission） modes, introduced the working principle of ICPT （Inductive Coupled Power Transfer） system, established the mutual inductance mathematical model of ICPT system with magnetic core, and analyzed the relationship among mutual inductance, property of magnetic core, property of coil, axis offset distance and magnetic shielding effect of loosely coupled transformer with different structures. The simulation results show that the influence of core attributes on mutual inductance is limited, the influence of coil property on mutual inductance has no upper limit, and the ICPT system with a magnetic stripe core at transmitter and a disk core at receiver can satisfy the power supply demand and the electromagnetic shielding requirement of electric charging system of electric vehicle.
出处
《吉林大学学报（信息科学版）》
CAS
2017年第6期636-642,共7页
Journal of Jilin University（Information Science Edition）
关键词
电动汽车
无线充电
磁感应耦合电能传输
互感
电磁屏蔽
electric vehicle
wireless charging
inductive coupled power transfer
mutual inductance
electromagnetic shielding
