基于平面正交发射线圈的全向无线电能传输系统分析  

Analysis of Omnidirectional Wireless Power TransmissionSystem Based on Planar Orthogonal Transmitting Coils

作　　者：胡岩 凌志斌[1] 李旭光[1] Hu Yan;Ling Zhibin;Li Xuguang(Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

机构地区：[1]上海交通大学电气工程系,上海200240

出　　处：《电气自动化》2021年第6期86-89,共4页Electrical Automation

基　　金：国家自然科学基金面上项目(51777125)。

摘　　要：传统无线电能传输技术的能量传输定向性较高,限制了其在某些应用方面的进一步拓展。设计了一种基于平面正交发射线圈结构的全向无线能量传输系统,发射线圈和接收线圈均采用LCC谐振补偿。搭建了系统的等效电路模型,研究了系统耦合特性,系统的平面正交发射线圈电流近似有效值相等和相位差为90°,用于实现全向无线电能的传输。优化了部分电容参数,所有开关管均实现了零电压开关电路。搭建了试验平台,通过测试接收线圈在不同位置时的发射线圈电流和负载输出电压,验证了理论结果预期。Traditional wireless power transmission technology has high energy transmission directionality,which limits its further expansion in certain applications.An omnidirectional wireless energy transmission system based on a planar orthogonal transmitting coil structure was designed.Both the transmitting and the receiving coils adopted LCC resonance compensation.The equivalent circuit model of the system was built,and the coupling characteristics of the system was studied.The currents of the two planar orthogonal transmitting coils were approximately equal in root-mean-square quantity and 90°in phase difference,which were used to realize the omnidirectional wireless power transmission.Some capacitance parameters were optimized,and all the switch tubes realized zero-voltage switching.An experimental platform was built to test the current of the transmitter coil and the output voltage of the load atdifferent receiver positions,and the expected theoretical results were verified.

关 键 词：全向无线电能传输 两相半桥逆变器 LCC谐振补偿网络 软开关 正交线圈 

分 类 号：TM724[电气工程—电力系统及自动化]