The Study Of Characteristic Wireless Energy Transfer System Based On Magnetic Coupling Resonance

With the development of the wireless transmission technology in recent years,the wireless transmission of electrical energy as a safe,reliable and convenient way of non directional transmission gradually aroused the attention both at home and abroad.The transmission properties of magnetic resonance coupling can radio transmission system is the research emphasis in this paper.According to comparative screening to clusters of circuit topology structure,the use of Matlab M file for simulation and analysis system for transmission characteristics.Get the best former deputy system under different frequency inductance value,according to choose the parameters of the system in 31.25 KHZ can get higher transmission power,when the transmission distance at 10 cm,transmission efficiency is above 80%.Through analysis and comparison of full bridge inverter circuit is chosen as the topology of high frequency power supply circuit,in order to analyze the whole bridge inverter circuit in the working state of the load for LC resonance circuit,through the Matlab/simulink simulation software can magnetic resonance coupling radio transmission system circuit simulation model is set up.A wireless power transfer experiment system has been designed.Through the selection and analysis of the experimental apparatus each device,finally completed the design of the experiment system.Experiment system could be successfully light 5 w LED bulbs of 2,furthest distance can reach 35 cm.Analyzes the characteristics of its direction,the study found that when the former vice edge coil vertically with each other,basic energy cannot be from the original edge to the edge.Through the experiment of transmission distance and direction characteristic analysis,analysis with the increase of transmission distance,power and efficiency are decreased,discovery system affected by the direction of the small.In addition,do the load power and frequency,load power and distance,transmission efficiency and the distance of contrastive analysis of the experiment and simulation,found that the two results are basically identical.