Fuzzy PID Control To Feed Servo System of CNC Machine Tool

Xie Dong, Zhu Jian-qu, Wang Feng
2012 Procedia Engineering  
The feed servo system of CNC machine tool is a complex electromechanical coupling system. Due to the characteristics of time-varying parameters, load disturbances and motor nonlinear, it is difficult to model for the control system accurately. An approach is presented that a fuzzy adaptive PID controller is designed by the PID controller combined with the fuzzy controller based on the mathematical model of the CNC machine tool feed servo system. The controller is applied to control the feed
more » ... o system and gained better control performance. The simulation results show that this method not only has no static distortion, but also has a fast response with little overshoot. This fuzzy adaptive PID controller has high stability and accuracy.
doi:10.1016/j.proeng.2012.01.403 fatcat:42h7riy4xzdp7lahshujxyvh7a