Design And Reseach On Hybrid Excitation Magnetic Levitation Feeding Platform

Electricity is the important energy in modern industrial production and lives, the use of electricity pulled open the prelude to the Second Industrial Revolution and pushed the human civilization to a new stage. Although only a short span of one hundred years of research history, electricity technology make progress greatly. But the application of electrical energy did not get rid of the dependence on the wire in most situations. As people demand for electric power applications higher and higher, wireless power supply gradually become the research hotspot in the field of electricity gradually.In this article, the main research is to make a device that can charge of wireless power cylinder solenoid valve.In wireless power supply technology, there are three kinds of main technical route such as the electromagnetic wave project, the electromagnetic resonance project, the electromagnetic coupling project. In the implementation process of this topic, firstly through the analysis of the query implementation scheme and technical characteristics of the wireless power technology at home and abroad rule out the transmission power of small, complex electromagnetic wave project. In the process of project implementation, selecting the electromagnetic resonance program has conducted a series of research and experiment. In the experiment, the wireless power supply and the experimental structure must be improved. Because the wireless power supply system based on electromagnetic resonance solution volume is too big, it is not adopted in the project implementation.In the electromagnetic coupling for the final solution, First make mathematical modeling to the system and analysis of the four different output circuit compensation structure model. In the end using the receiver circuit in parallel compensation structure. The wireless power supply system composition by the amplifier module, receiving module, rectifier module, charging modules. Through the comparison and analysis, The emission signal amplification part of the system adopted the class E power amplifier of low power consumption, the receiving module using litz wire winding, using diode rectifier module USES fewer and boost voltage doubler rectifier circuit effect the charging module adopted the high energy density, no pollution of lithium battery. In the experiment, make the computer simulation experiment to the key module of system. According to the analysis and the simulation effect is made based on electromagnetic coupling principle of wireless charging simple mode. After the last of the specific measurements this topic in the production of wireless power supply system can realize wireless power supply to achieve stable at a distance of about 10 cm, overall system output efficiency is about 11%.