Design Of Magnetic Resonance Wireless Power Transmission System Based On Class E Inverter

In today’s society,electrical energy plays an indispensable role in the era of electrification.Since the application of electrical energy,it has been with the method of transmission lines in power supply and the load of power transmitted between them,therefore in the process of electric power transmission will inevitably produce transmission loss.At the same time,factors such as line aging,cutting-edge discharge are also easy to produce electric sparks,greatly reducing the power supply of equipment Reliability and security.With the continuous development and progress of the power age,in recent years,more flexible,safe and efficient wireless power transmission(WPT)technology has been widely concerned around the world.It breaks the inherent pattern of traditional wired power transmission and truly realized the electrical isolation of power supply and load.In this paper,the research progress and current situation at home and abroad are investigated,and the applicable fields and advantages and disadvantages of the four main radio energy transmission technologies are compared and analyzed.Finally,the magnetic-coupled resonant radio energy transmission technology,which can realize medium distance and high efficiency transmission,is selected as the research object,and the following work is carried out:Firstly,the principle of magnetically coupled resonant radio energy transmission technology is analyzed and the system block diagram is made.Based on the two ports network theory,the theoretical analysis and modeling of system are carried out.The compensation network and transmission coil design of the current magnetically coupled resonant radio energy transmission system are compared and analyzed.Secondly,the working principle and characteristics of class E inverter are analyzed in detail,and based on this,the parameters of class E inverter are optimized to obtain the optimal load and achieve the maximum power output.At the same time,the output load independence is realized without adding circuit topology through parameter design.Thirdly,Saber simulation software is used to simulate the system under different configuration conditions,providing simulation support for the research on radio energy transmission and theoretical guidance for the design and construction of the system platform.Finally,systematic experiments are carried out to verify the accuracy of the theoretical analysis and simulation results.