Magnetically coupled resonant wireless power transmission system with double three coils in coal mine
LIU Xiaowen
WANG Xi
JIN Lei
HAN Nannan
ZHAO Duan
DING Enjie
Abstract：In order to enhance coal mine transmission power and transmission efficiency of the wireless power transmission system and reduce the voltage of loop capacitor,the coil structure of the wireless power transmission system is improved and the transmission system for the wireless power transmission system is proposed.According to the theory of mutual inductance coupling circuit,the mathematical expressions of wireless power transmission system transmission power and transmission efficiency is deduced.The impacts of coefficient of coupling and load on the transmission power and transmission efficiency are elaborated separately.In the design process,the OrCAD and MATLAB are used to simulate and analyze the various influential factors of the transmission system.Based on the above,an experimental platform is designed and fabricated.The optimum efficiency transmission distance of the wireless power transmission system are existed by the result of experimental analysis.The experimental results are consistent with the simulation results totally.Compared those experiments with magnetically coupled resonant wireless power transmission system with typical three coils,the transmission efficiency and transmission power of the improved wireless power transmission system are increased which can provide theoretical reference for the field practice of the wireless power transmission system in the coal mine.
Keywords：magnetic coupling resonancewireless power transmissioncoupling coefficientload
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 78-84 )