摘要
基于磁耦合机构的等效电路模型,开展无线传能耦合特性分析,提出一种新型空间螺旋线圈结构,应用ANSYS有限元分析软件开展发射线圈和接收线圈的电磁场仿真建模,对线圈结构进行电磁优化设计,并对比有无中继线圈的磁耦合机构,发现添加中继线圈可以在有效增加传输距离的同时将系统的传输效率提高1.475倍。最后,构造了一台共振磁耦合无线取能模型样机,实验结果表明,该样机能够实现传输距离为3 m、功率为40 W的LED灯负载供电,由此验证了无线取能线圈设计的有效性。
Based on the equivalent circuit model of magnetic resonance coupling,the characteristics of wireless energy transmission system are analyzed and a novel coil with space spiral structure is proposed.The electromagnetic field simulation models of the transmitter and the receiver coils are built using ANSYS software to perform the electromagnetic optimization design of the coil structure,and the magnetic coupling mechanism both with and without the relay coils are compared.It is found that adding a relay coil can effectively increases the transmission distance and increases the efficiency by 1.475 times.Finally,a magnetic resonance coupling wireless power transmission system prototype is constructed and tested.The experimental results show that the prototype can achieve a wireless power transmission with a transmission distance of 3 meter for a LED load of 40 Watt,which verifies effectiveness of the design of the wireless power system.
作者
胡娟
赵波
孙谊
HU Juan;ZHAO Bo;SUN Yi(China Electric Power Research Institute,Beijing 100192,China;Automation College,Beijing University of Information Science and Technology,Beijing 100192,China;China Electrotechnical Society,Beijing 100045,China)
出处
《电网与清洁能源》
2019年第1期22-27,共6页
Power System and Clean Energy
基金
国家自然科学基金资助项目(51777197)~~
关键词
共振磁耦合
无线电能传输
中继线圈
米级距离
magnetic resonance coupling(MRC)
wireless power supply
relay coils
meter class distance
