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Research on Error Control Technology of High Performance CNC System Based on Feedforward Control
Ping Liu, Min Wu, Guoyong Lin
108 - 114
10.3233/ATDE231096
Research Article
Advances in Transdisciplinary Engineering
Volume 46: Mechatronics and Automation Technology
Abstract

The mathematical model of servo control system is established, and the physical meaning of feedforward control is analyzed. Based on the servo three-loop control structure, a feedforward compensation mathematical model is constructed to reduce the tracking error of each axis of the CNC system. The application in FANUC CNC system shows that the large tool path tracking error of the servo system due to the phase lag and amplitude attenuation of the drive signal can be reduced by setting the appropriate feedforward coefficient during high-speed and high-precision machining.

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