双通道无线电能传输系统分析设计

Analysis and Design of Dual-Channel Wireless Power Transfer System

为了克服传统无线电能传输系统只有一个谐振频率的缺陷,通过重新设计匹配电路,加入谐振点,使系统拥有两个谐振频率,即双通道无线电能传输系统。运用空心变压器理论得出等效电路;通过仿真系统的电压比、效率等系统的输出特性,分析了双通道传输的可行性。最后设计了仿真模型,验证了系统在两个传输通道均有良好的输出特性。

Traditional wireless power transfer system has only one resonant frequency,while in the actual application it may require a plurality of transmission channels.To overcome these shortcomings,this paper designed a new matching circuit in which the resonance point is added so that the system has two resonant frequencies,namely dual-channel wireless power transfer system.In the paper,the air-core transformer theory was used to get the equivalent circuit.By analyzing the voltage ratio and efficiency characteristics of the system,it proves the feasibility of dual-channel transmission.Finally,the simulation model was designed to verify that the design of dual-channel transmission has excellent output characteristics.The dual-channel transmission system has more reference to the system which applies control signal and more loads in wireless energy transfer system.