Fast tool servo system based on fractional order PID and repetitive control
LIU Chun-fang
LIU Zhi
Abstract：Aiming at the system tracking accuracy problem of fast tool servo system driven by permanent magnet linear synchronous motor ( PMLSM) under the high frequency input signal, a fractional order PID repetitive control algorithm was designed. Due to the characteristics that both reference signal and disturbance signal of the system had the periodic feature, the modified fractional order PID control was combined with the repetitive control through the inhibiting study on the tracking and disturbance of reference signal. With the tracking and inhibiting ability of repetitive control to the periodic input or complex interference signal, the fractional order PID controller was compensated, which made the system have a quick response ability and a strong anti-interference ability at the same time. The simulated results show that the proposed control strategy can effectively improve the tracking accuracy of servo system, and has a better inhibition effect for the periodic disturbance.
Keywords：permanent magnet linear synchronous motor ( PMLSM)fast tool servofractional order PIDrepetitive controlfast responseanti-interferencetracking accuracyperiodic disturbance
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 486-490 )