Analysis of Wireless Energy Transfer System Using Magnetic Resonant Coupling
In order to research the relationship between coupling distance and transmission efficiency,study on the transmission characteristics of magnetic resonant coupling for wireless power transmission system,simulation model of wireless power transmission system via magnetic resonance coupling were established based on the theory of two ports network analysis method.The frequency expression of maximum efficiency and the resonant frequency splitting phenomenon condition of a contact-less power transmission system were derived.In a weak coupling at resonance,magnetic resonant coupling can transfer energy with high efficiency.The resonant frequency changes from two to one depending on the critical condition.Until a certain distance,maximum efficiencies are not got.The transmission characteristics of this system were researched by simulation software and experiments.The results show that the transmission characteristics are consistent with theoretical analysis and simulation.
Magnetic resonant coupling Optimum efficiency Resonance frequency
Wei-xin Li He Zhang
ZNDY of Ministerial Key Laboratory,Nanjing University of Science and Technology,Nanjing 210094,China
国际会议
广州
英文
1164-1167
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）