摘要
为了提高无线电能传输弱耦合条件下系统发射端品质因数,提高系统的能量传输功率和效率,针对接收端线圈小型化的需求,提出了一种三线圈弱耦合无线电能传输模型;在采用单管E类功率放大器的作为系统驱动源基础上提出了一种新型阻抗网络匹配调节方法;在提高线圈品质因数的同时能够控制有载品质因数;通过仿真及实验对比方式验证了系统软开关状态对系统功率及效率的影响。最后,通过对驱动源负载网络参数的匹配调整,实现了2.5 MHz频率下60 W功率输出,系统效率达到78%以上。
In order to enhance quality factor in system's sender under the weak coupling condition of wireless power transmission, increase system's power transmission power and efficiency, came up with one triple coil weak coupling power transmission model. A new match adjustment method of Impedance network is raised based on the usage of single pipe class E power amplifier as the system driver source. Enhance the coil quality factor and at the same time control on-load quality factor effectively. Through Simulation and experiment comparison, the impact of system soft switch on system power and efficiency is verified. At last, 75 W power output at 2.5 MHz frequency and 78% system efficiency is realized through the match adjustment of driver load network parameters.
出处
《电工技术学报》
EI
CSCD
北大核心
2015年第S1期193-198,共6页
Transactions of China Electrotechnical Society
基金
国家自然科学基金资助项目(51277037)
