Research on Electrical Adaptive PID Control of Aluminum Profile CNC Machining Center
In response to the influence of mechanical resonance,nonlinear friction and other factors on the motion control accuracy of the electrical servo system in aluminum profile CNC machining centers,the electrical adaptive PID control of aluminum profile CNC machining centers is studied.Firstly,establish mathematical models for the motor and transmission components of the electrical servo system of the aluminum profile CNC machining center,and design a PID controller based on the model.Then,genetic algorithm is used to adjust the controller parameters to form an adaptive PID control structure,thereby achieving electrical control of the aluminum profile CNC machining center.The results show that the maximum following error of the design method during machining control is 2.51 μm.And it has a restraining effect on the following error caused by nonlinear friction during the speed reversal process,confirming the good control performance and adaptive adjustment ability of this method.
aluminum profiles CNC machining centerelectrical controlgenetic algorithmadaptive PID control
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