Research on Wireless Power Transmission Based on Magnetic Resonance Coupling

2013 ◽  
Vol 811 ◽  
pp. 651-656
Author(s):  
Hao Wang ◽  
An Na Wang ◽  
Qiang Zhao ◽  
Yu Zhang
Keyword(s):  
Magnetic Field ◽  
Magnetic Resonance ◽  
Power Transmission ◽  
Coupled Mode Theory ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Coupled Mode ◽  
Magnetic Resonance Coupling ◽  
Resonance Coupling ◽  
Resonance Process

e. The formalism of wireless power transmission is discussed coupled mode theory can be used to describe the resonance process. According to the changing process of input impedance and input current to describe the demarcate of resonant frequency. also demonstrate that loop circuits have an important effect of the resonant magnetic field distribution.

scholarly journals Parameters Optimization for Magnetic Resonance Coupling Wireless Power Transmission

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Changsheng Li ◽  
He Zhang ◽  
Xiaohua Jiang
Keyword(s):  
Magnetic Resonance ◽  
Optimal Design ◽  
Power Transmission ◽  
Parameters Optimization ◽  
Maximum Power ◽  
Coupling Coefficients ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Magnetic Resonance Coupling ◽  
Resonance Coupling

Taking maximum power transmission and power stable transmission as research objectives, optimal design for the wireless power transmission system based on magnetic resonance coupling is carried out in this paper. Firstly, based on the mutual coupling model, mathematical expressions of optimal coupling coefficients for the maximum power transmission target are deduced. Whereafter, methods of enhancing power transmission stability based on parameters optimal design are investigated. It is found that the sensitivity of the load power to the transmission parameters can be reduced and the power transmission stability can be enhanced by improving the system resonance frequency or coupling coefficient between the driving/pick-up coil and the transmission/receiving coil. Experiment results are well conformed to the theoretical analysis conclusions.

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