Research On The Drive Of High Power And High Frequency Electromagnet

Reducing the power consumption of switching solenoid valves,increasing the frequency response of switching solenoid valves and creating a good electromagnetic environment are important technical problems that need to be solved urgently in the field of industrial automation.The research on high-speed switching solenoid valves is not only to study the structure and materials of solenoid valves.As well as the research of new drive circuits can not be ignored.Research on new drive circuits has the advantages of short development cycle,low R&D expenditure and the ability to improve the performance of solenoid valves without changing the original structure and materials of solenoid valves.It also can improve the frequency response of the solenoid valve,improve the life of the solenoid valve,and reduce the power consumption of the solenoid valve.At the same time,when the switch solenoid valve is powered on or powered off,it will have an impact on the power supply,which is electromagnetic interference,which affects the operation of the control system of the switch solenoid valve.Therefore,it is necessary to find a kind of drive circuits that can reduce the electromagnetic interference of solenoid valves and increase the anti-interference ability of solenoid valves.The drive circuits also can effectively improve the reliability of the automation control system.At present,the annual output of solenoid valves in the country and the world is huge.Solving the above problems,has good research significance,and has good economic value and application prospects.The research goal of this project is to design a high-power and high-frequency electromagnet in the combination of modeling,simulation and experiment.Then optimize the coil parameters,such as the diameter of enameled wire and the number of turns.And it also can use different magnetically conductive materials.Finally,with the new drive circuit,it can design a high-power and high-frequency electromagnet with new drive,high effect,low power consumption and low electromagnetic interference,which can be applied to large driving forces,high-speed switching and electromagnetic sensitive occasions.The main work of this paper is summarized as follows:(1)The background significance of research on high-power high-frequency electromagnet drive and the status quo of research at home and abroad are introduced.Three existing drive circuits are introduced,and their advantages and disadvantages are analyzed.Research content and research direction of high-power high-frequency electromagnet drive are clarified,which can demonstrate the theorization,systematicness and feasible nature of this topic.(2)Through modeling,simulation and experimental research,learn to master the structure of existing high-frequency electromagnets and the driving mode of electro-magnetic-mechanical conversion,master the working principle of high-frequency electromagnets to establish mathematical models,which can provide theoretical support for later optimization of coil parameters.(3)By changing the diameter of enameled wire of the coil,changing the number of turns of the enameled wire,and simulating the transient characteristics of the high-speed electromagnet based on the circuit knowledge of the high-speed electromagnet equivalent circuit,it provides theoretical support for the later optimization of the high-speed electromagnet.(4)After establishing the data to be tested in the experiment,select the corresponding sensors,acquisition equipment,instruments,etc.And it can build an experimental platform that can test the parameters required for high-power and high-frequency electromagnets.(5)By analyzing the data obtained from the experiment,the thrust characteristics and dynamic and static characteristics of the high-power high-frequency electromagnet are tested.The experimental results are compared with the existing driving circuits to test the characteristics of the new high-power and high-frequency electromagnetic driving circuits.