Design And Implementation Of Magnetic Coupling Resonant Wireless Charging System For Unmanned Aerial Vehicle

Radio energy transmission has been the technology that human beings have been pursuing for nearly a century,because it has the characteristics of safety,convenience and high efficiency,which our traditional power transmission method does not have.Is one of the most practical and the development potential of magnetic coupling resonant radio can transmit(MCR-WPT)technology,the technology and the induction radio can transmit compared with microwave radio can transmit MCR-WPT technology transfer efficiency is high,little interference by environmental factor for electricity transmission from close range,so the MCR-WPT technology now has the attention of researchers both at home and abroad.With the development of society,UAV has been seen everywhere in our life,UAV has been widely used in military,agriculture,entertainment and other fields.Based on MCR-WPT technology,this paper designs a wireless charging system suitable for micro UAVs.The main research contents are as follows:(1)This paper introduces some important parameters of MCR-WPT system,inductance and resistance of the coil,as well as the coupling coefficient between them,explains the frequency splitting phenomenon in MCR-WPT system,analyzes the system by means of coupled mode theory,and compares three basic structures of MCR-WPT system.(2)This paper introduces the types of unmanned aerial vehicle(uav),according to the current of the most widely used in miniature unmanned aerial vehicle(uav),the designed magnetic coupling resonant uav wireless charging system,the design of the charging platform has high level displacement tolerance,and using the theory of K impedance transformer is analyzed systematically voltage-the load has nothing to do,and for quality lighter micro uav wireless charging system is designed,which puts forward a kind of super light conformal charging coil.(3)To the measured data in simulation software simulation,the design of this article is based on MCR-WPT technology of micro uav wireless charging system is analyzed,the results of simulation and the experiment verification,validation of the system voltage has nothing to do-load features,as well as the uav wireless charging system with high dislocation tolerance in horizontal direction,and the quality of the smaller miniature unmanned aerial vehicle(uav)simulation of wireless charging system has carried on the simulation analysis.(4)Finally,the two charging systems were tested.Through waveform data,the transmission efficiency of the two wireless charging systems was calculated to be 89%and 83%.The DC voltage after voltage stabilization by rectifier filter was measured,and the DC voltage ratio was stable,which met the requirements of UAV charging.