| Since the twenty-first century,China’s industry and technology are developing steadily,wireless energy transmission technology is becoming more and more important for people’s living needs.Wireless energy transmission technology is the use of electrical equipment to obtain electricity in a contactless manner,compared with traditional wired power supply mode,wireless power transmission technology is safer and more convenient.As a new wireless energy transmission technology,magnetic coupling resonant wireless energy transmission technology is difficult to be affected by obstacles in the transmission process compared with the electromagnetic wave transmission mode,and its transmission distance is relatively longer than the electromagnetic induction transmission mode.The research of magnetic coupling resonant wireless energy transmission technology is of great significance.In this paper,magnetic coupling resonant wireless energy transfer technology is carried out,the main research contents are:(1)Introduce and overview wireless energy transfer technology generally.Firstly,the shortcomings of conventional contact power transmission are summarized,and the natural advantages of radio energy transmission technology are obtained,then it introduces the research status and application prospect of the technology at home and abroad,and further analyzes the technical difficulties existing in the magnetic coupling resonant wireless energy transmission technology,and puts forward the preliminary solution.(2)The magnetic coupled resonant wireless power transmission principle is analyzed in detail,and the magnetic coupling theory are introduced,based on physical model of radio transmission system,and the analysis of mathematical model,the establishment of the four coil system circuit model of resonant coil model and topology analysis.Then,the performance parameters of the magnetic coupling resonant wireless energy transmission system are analyzed.(3)The magnetic coupling resonant wireless energy transmission system is simulated,and the simulation analysis is carried out by ANSYS software,the meshing of the finite element model and the model is established,and the influence of the coil diameter and the number of turn s on energy transfer efficiency is analyzed.(4)Magnetic coupling resonant energy transfer experimental device is introduced,introduce the device’s switching circuit,resonant transmitter circuit and resonant receiver circuit.And one by one to introduce the experimental platform.(5)The influence factors of the transmission performance of the magnetically coupled resonant wireless energy transmission system are classified and analyzed,and the frequency characteristics of the system are analyzed.The influence of the transmission distance,the resonant frequency,the relative position of the transmitting and receiving coil,and the transmission characteristics of the relay coil on the system are analyzed.Through the actual experiment to verify the theoretical analysis results,draw the corresponding conclusions. |
