Research and Applications of Fuzzy-PID Control on NC Machine

Abstract

This dissertation mainly introduces Fuzzy-PID Control which are used in the PFPL (Pseudo-flexible Production Line). The servo system plays an important role in the NC machine. The performance of servo system decide the quality of NC machine in very great degree This dissertation research and develop a milling and paring manufacture unit of open CNC system -- Numerical control unit of PFPL. By using the GT-SV motion controller, put up the software and hardware platform of NC unit rapidly with module design method and the target -oriented programming idea .Take NC milling machine as the process platform, this dissertation use intellectual PID control method to improve the servo control of motion controller, through the pointing accuracy survey of the milling machine, confirmed the actual effect of Fuzzy-PID control.

Interval Type-2 Fuzzy PID Controller Using Disassembled Gradational Optimization

“…Conventional proportional-integral-derivative (PID) controllers have a simple structure, convenient adjustment, good stability, and reliable operation. Hence, they have been widely used in industrial control applications such as synchronous generator control, aircraft automatic navigation system control, computer numerical control, machine tool control, robot control, temperature control, and liquid level control [1][2][3][4][5]. Many intelligent controllers are based on conventional PID controllers.…”