基于Simulink的高速电磁阀动态响应分析

利用MATLAB/Simulink软件建立了由磁场强度模型、电磁作用力模型、阀芯运动阻力模型以及回位弹簧作用力模型组成高速电磁阀仿真模型.分析了驱动电压、电磁力、阀芯质量和线圈匝数等参数对电磁阀动态响应特性的影响.仿真结果表明:在一定条件下增加驱动电压,采用质量小的阀芯,选取小的回位弹簧预紧量,减少线圈匝数和降低弹簧刚度,有利于加快电磁阀开启响应速度,而降低维持电压,适当减小工作气隙、增大弹簧刚度,有利于加快关闭响应速度.

Modeling and Simulation of Dynamic Response Analysis of High-speed Solenoid Valve

A high-speed solenoid valve simulation model was established based on Matlab/simulink soft- ware. The valve model was composed of the magnetic field intensity sub-model, the electromagnetic force sub-model, the valve core motion resistance sub-model and return spring force sub-model. Using the simula- tion model the effects on the dynamic response of high-speed solenoid valve respectively from the parameters including driving voltage, electromagnetic force, mass of valve core and turns of electric coil were evaluated. Simulation results shown that under certain conditions increasing the driving voltage, using small mass of valve core and small amount of return spring preload, reducing coil number of turns and lowering spring stiffness could all help speed up the opening response speed of the solenoid valve, and meanwhile reducing the maintain voltage, increasing appropriately the spring stiffness and decreasing the working air gap could all help speed up the closing response speed.