摘要
根据谐振式无线能量传输原理,建立了谐振式单线圈发射三线圈接收系统的电路模型,同时在三接收线圈采用对称结构的情况下,推导和研究了系统输入电流、负载电压、负载电流和传输效率与谐振频率、负载电阻、发射与接收线圈和接收与接收线圈间的互感等系统特性的关系,根据已知负载特性,通过Matlab仿真选取了系统工作频率、发射和接收线圈电感量最佳范围,并研究了发射接收线圈电感量、传输距离和负载变化对传输效率的影响,最后进行实验,结果与理论分析和仿真吻合。
Based on the theory of magnetic coupling resonant, the circuit model of resonance system with singleemission and three-receiving coil is established,under the condition of three-receiving coil adopt symmetrical structure,the relationship between input current,load vohage,load current as well as transmission efficiency and system characteristic including the resonant frequency, load resistance and mutual inductance between the transmitting and receiving coil as well as the receiving and receiving coil are calculted and studied.Based on the known loads characteristics, through Matlab simulation, the best selection rang of the resonant frequency, transmitting and receiving inductance and load resistance is be sure,the impact on transmission efficiency from transmitting and receiving inductance value,transmission distance and load is be researched.Finally the experimental results show that experiments is consistent with theoretical analysis and simulation.
出处
《电力电子技术》
CSCD
北大核心
2015年第10期92-94,共3页
Power Electronics
基金
国家自然科学基金(51207150)~~
关键词
无线能量传输
磁耦合谐振
多负载
传输特性
wireless power transfer
magnetic coupling resonance
multi-loads
transmission characteristics
