摘要
基于磁耦合谐振的无线电能传输技术在众多传输技术中具有传输距离适中和效率较好的优点。阐述了磁耦合谐振式无线电能传输原理并建立等效互感理论模型进行参数分析,进一步基于不对称半桥和LC串联谐振电路拓扑分析了开关管占空比变化对输出功率的影响。设计了一种小功率无线电能传输系统,并通过仿真和实验,验证了理论分析和系统设计的正确性。
Among many transmission technologies,the wireless power transmission technology based on magnetic coupling resonances has the advantages of moderate transmission distance and good efficiency. This paper elaborates the principle of wireless power transmission based on magnetic coupling resonances and establishes an equivalent mutual inductance theoretical model which helps to analyze parameters. Furthermore,based on asymmetric half bridge and LC serial resonance circuit,it analyzes the influence of the changes in duty ratios of the switching tube. A low-power wireless power transmission system is designed. The simulation and experimental results of the system are given to verify the correctness of theoretical analysis and system design.
出处
《电气自动化》
2015年第6期53-55,81,共4页
Electrical Automation
关键词
磁耦合谐振
无线电能
互感模型
占空比
不对称半桥
magnetic coupling resonances
wireless power
mutual inductance model
duty
asymmetric half bridge
