Design And Analyse Of Control System In Electromechanical Actuation

The paper generally analyses and designs the electromechanical actuator servosystem of artillery projecting guidable projectile. First, according to the performancerequirements, we select the parts type of electromechanical actuator and calculate theirmathematic model, then we can get the mathematic model of whole electromechanicalactuator by compute and experiment result. Based on the model, we can design themethod of sliding mode variable structure control(SVSC). With a view to the bothdemand of theory and engineering, the paper study the control law of continuum-timeSVSC and discrete-time SVSC respectively and provide the simulation of control effectby each.To comparing and illuminating the control effect, the paper also adopts the methodof ameliorated PID to design the controller. Then choose the LPC936 single-chipcomputer in this system to implement the control law. We also design and make the driveand feedback apparatus. Finally, comparing the controllers'performance designed indefferent control law comprehensively.The result of experiments indicates that the properties of both sliding mode andameliorated PID electromechanical actuator control implement designed in the paper iswell. However, the SVSC controller has the better performance in speediness andstabilization. It provides the positive referrence in more field.