Adopt The Wireless Power Transmission Technology Of Resonant Magnetic Coupling For Equipment Monitoring Sensor

Power industry has developed rapidly in recent decades,especially UHV and EHV transmission technologies,which has stood at the forefront of the world.The power system is moving in the direction of high voltage and large capacity.How to ensure the stable operation of the power system also occupies an increasingly important position.Therefore,the safe operation of transmission line is one of the key tasks in the power grid.In the meantime,with the increase of equipment monitoring sensors on transmission lines and the widening of coverage,the power requirements of sensors are getting higher and higher.Solving the outdoor power transmission line equipment monitoring sensor power supply problems,as a restricted device monitoring sensors in the power grid security development is an important factor.This paper based on the current power equipment monitoring sensor power supply problems,combined with the latest resonant magnetic coupling wireless power transmission technology related research.First of all,it summarizes and analyzes the ending characteristics of resonant magnetic coupling wireless power transmission,including three aspects: frequency characteristic,coupling characteristic and power efficiency characteristic.Then,the characteristics of each coil structure are compared and analyzed,and the characteristics of the wireless power transmission are improved by adding magnetic cores.It provides a theoretical basis and a reference basis for selecting the coil structure of the resonance magnetic coupling wireless power transmission system in the wireless power supply of the power equipment monitoring sensor.Then,based on the application of resonant magnetic coupling wireless power transmission technology to the wireless power supply monitoring of power equipment,the core part of the magnetic coupling system of wireless power transmission system is simulated.The Helix coil was found to be the best when compared to the original Helix coil and the Spiral coil.Then,based on the simulation research and theoretical research,the transmitter and receiver coils are made by selecting the appropriate wires according to the simulation model.And further a small core is used to produce an optimized core structure.The final test is made with a digital bridge.Finally,by adjusting the input parameters and measuring the system parameters,the computational analysis verifies that the design based on resonance Magnetic coupling of wireless power transmissiontechnology,power equipment monitoring sensor wireless power supply program performance is feasible.The research results of this paper provides a theoretical and experimental basis for the power equipment monitoring sensor wireless power supply technology and can provide a stable,continuous and safe power supply for monitoring sensors without affecting the safety of power equipment,provide reliable power for the safety monitoring of the power grid and indirectly improve the reliability of monitoring.