无线充电系统磁环条幅型磁耦合机构研究与优化

Research and Optimization of Magnetic Ring Strip Type Magnetic Coupling Mechanism for Wireless Charging System

无线电能传输技术因其采用非物理接触式能量传递方式,可有效解决传统插拔式用电设备传能过程中存在的磨损、漏电等诸多问题。鉴于此,提出一种新型副边磁环条幅型松耦合变压器(LCT)结构,该结构可有效降低机器人负重,进而提高其机动性与续航能力。为获取LCT最优性能,首先引入效能积作为衡量系统综合效能指标;其次,通过电磁仿真软件对新型磁环条幅型磁芯结构进行对比分析,仿真结果表明该磁芯结构具有良好的聚磁性能,可有效提升LCT耦合系数;最后搭建一套基于所提出的新型LCT结构的实验平台,验证了理论分析的有效性,具有一定的工程应用价值。

Wireless power transmission technology can effectively solve the problems of wear,leakage and so on in the energy transmission process of traditional plug-in electrical equipment because of its non-physical contact energy transmission mode. In view of this,a new type of secondary side magnetic ring strip type loosely coupled transformer(LCT)was proposed,which can effectively reduce the weight of the robot,and then enhance its mobility and navigating ability. In order to obtain the optimal performance of LCT,firstly,the efficiency product was introduced to measure the comprehensive efficiency of the system as an index. Secondly,through the electromagnetic simulation software,the structure of the new magnetic ring strip core was compared and analyzed,the simulation results show that the magnetic core structure has good magnetic gathering performance,which can effectively improve the LCT coupling coefficient. Finally,an experimental platform based on the proposed new LCT structure was built to verify the validity of the theoretical analysis. It has certain engineering application value.