Model Anysis And Control Strategy Of Multy-Rrlay Magnetic Resonant Coupling Wireless Power Transmission System

Magnetic Resonant Coupling Wireless Power Transmission(MRCWPT)is based on magnetic resonance coupling using the principle of resonance coupling to wirelessly transmit energy.Compared with the traditional magnetic induction wireless transmission method,the transmission distance have been greatly improved.At the same time,the theoretical analysis method becomes more complicated and the degree of freedom in transmission space becomes higher.In order to better explore the transmission mode and law of magnetic resonance coupling,this paper proposes a magnetic resonance coupling mode analysis mode based on the vibration mode analysis theory,which is convenient to establish mathematics simulation model for the magnetic resonance coupling wireless energy transmission system in any scenario and optimize transmission performance.In order to solve the problem of uneven spatial attenuation of the magnetic resonance coupling system and improve the transmission coverage of magnetic resonance,this paper proposes a switching control strategy to improve the effective transmission area,and conducts experiments to verify its effectiveness.The switching control strategy can improve the transmission range,and at the same time,the power output balance and transmission efficiency must be considered comprehensively,which has important reference significance for the design of the magnetic resonance coupled wireless power transmission system.The main research contents of this article are:1、Combining the theory of vibrational modal analysis,a modal analysis mathematical model of a universal magnetic resonance coupling system of any size is established.This model can mathematically model,parameterize,and parameterize the magnetic resonant coupling wireless power transmission system of any scene and explore the system’s frequency characteristics,input and output response,etc.based on the system’s transmission matrix.The frequency characteristics and spatial characteristics of magnetic resonance coupled wireless energy transmission are analyzed in depth,and a number of simulation models are established to simulate the frequency splitting phenomenon,the spatial characteristics of the coils,and the transmission characteristics of the relay,etc.,for the magnetic resonance coupled wireless transmission The method of transmission optimization provides a good theoretical basis and simulation of phenomena.2、According to research and experimental findings,magnetic resonance wireless charging systems can only achieve high-power transmission at specific locations.When the receiver’s position or direction deviates,power and efficiency will rapidly decrease.In order to solve the problem of spatial attenuation of the magnetic resonance coupling system and improve the transmission coverage,we studied the spatial characteristics of the relay,and further explored the role of the relay with a switch.In this article,we innovatively propose a switch regulation strategy and design switch control logic to regulate the relay,thereby enhancing the effective receiving area of the system and enabling the receiver to increase its coverage as much as possible in space while moving.In the experiment,the function and performance of different relay switch control logic were verified.Finally,we also conceived the design of a next-generation wireless charging experimental platform,a modular and functional wireless charging platform.