电动汽车无线充电系统的功率控制方法  

A Power Control Method for Wireless Charging for Electric Vehicles

作　　者：宋亮[1] 张希[1] 李哲[1] SONG Liang;ZHANG Xi;LI Zhe(Shanghai Jiaotong University,Shanghai 200240,China)

机构地区：[1]上海交通大学,上海200240

出　　处：《传动技术》2018年第3期3-7,共5页Drive System Technique

基　　金：国家自然科学基金(51677118);国家重点研发计划重点专项(2017YFE0102000);上海市政府间国际合作项目(16510711500)

摘　　要：为了实现电动汽车无线充电系统的功率控制,本文采用T型解耦与受控源等效分析的方法对集成LCC补偿拓扑进行分析,得到此种拓扑在系统参数确定的情况下输出为恒流源的特性,并获得了系统传输功率的表达式。基于拓扑分析,提出了通过以BUCK电路输入电压反馈来对无线充电系统进行功率控制的方法,设计了恒功率充电与恒电流充电两种充电模式,并在实验中对此方法进行了验证。To control the power transfer process in wireless charging for electric vehicles, the integrated LCC topology is analyzed by the method of T-shape decoupling and controlled source equivalence in this paper. The output of such topology can be regarded as a constant current source when the system parameters are determined, and the expression of the transferred power is also obtained by circuit analysis. Based on the theoretical analysis, a power control method using feedback of the input voltage of the BUCK converter is proposed. Two charging modes, constant-current and constant-power modes are designed, and the power control method is verified by experiment.

关 键 词：电动汽车无线充电 集成LCC补偿拓扑 BUCK电路 功率控制方法 

分 类 号：U469.722[机械工程—车辆工程]