| The paper has done a lot work on the important part of magnetic coupling wireless transmission coils including theoretical analysis, simulation and experiment. The work including:Firstly, the paper has finished the theoretical analysisbased on Circuit theory, Electromagnetic filed theory and dynamics, in the same time, we have got the key factors which have a power influence on the wireless transmission system. In the research of Circuit theory, the paper analysis the relationship between the system transmission efficiency and topology of different connection of resonance capacitanceSecondly, the paper simulate the magnetic resonance power transmission system with the software Ansoft HFSS and get the distribution of magnetic field and the different factors which have influence on system efficiency. Further, the paper design a coil has a better directivity through adding a magnetic core with the coil, it is also can be used in experiment. Then the paper verify the relationship between other factors such like coupling coefficient, Q factor.Finally, the paper has showed the experiment surrounding. The first experiment verifies the influence on the system efficiency in different topologies. The second experiment verifies the resonance frequency, coupling coefficient and efficiency in different distances. The conclusions are accord with the theoretical analysis. |
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