摘要
针对满足电动汽车车载无线充电要求的双LCL谐振补偿网络进行研究与分析。首先分析电动汽车无线充电的电磁耦合关系及4种基本谐振补偿网络特性；然后基于双LCL谐振补偿的工作特性，探讨分析在电动汽车无线充电发射端与接收端发生横向及纵向相对偏移时的工作特性；最后通过Ansoft，针对圆盘型电磁耦合结构进行三维有限元仿真，并搭建一个5．5kW的双LCL谐振补偿实验系统，对在纵向距离200mm（最大横向偏移120mm）和无横向偏移（纵向距离150～250mm）时的工作特性进行验证。该系统在纵向距离200mm（无横向偏移）时，最大功率传输能力为5．5kW，同时达到最大效率点95．37％。
This paper presents the study and analysis of the wireless power transfer （WPT） system for electric vehicles （EVs） based on the double-LCL resonant network. The electromagnetic coupling relationship for the EVs WPT system and the features of four basic compensation networks are analyzed firstly. Then the characteristics of the transmitting and receiving terminals with the double-LCL resonant network for the EVs WPT system are discussed in detail under the horizontal or vertical misalignment conditions. Finally, the 3-D finite element analysis package Ansoft is utilized to verify the network. A 5.5 kW experimental system with circular pads is set up. Two conditions are discussed, i. e. 200 mm air gap with 120 mm horizontal misalignment at most and no horizontal misalignment with air gaps ranging from 150 to 250 mm. Under the condition of 200 mm gap without horizontal misalignment, the experimental system can transfer the maximum power about 5.5 kW with the highest efficiency of 95.37%.
出处
《电工技术学报》
EI
CSCD
北大核心
2015年第15期127-135,共9页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(51307021)
吉林省自然科学基金(20140101076JC)
吉林省教育厅技术研究项目(2015238)资助
关键词
电动汽车
无线充电
双LCL谐振补偿
单位功率因数
Electric vehicle, wireless power transfer, double-LCL resonant, unity-power-factor
