Comparison of Automatically Tuned Cascade Control Systems of Servo-Drives for Numerically Controlled Machine Tools

Authors

  • S. Mandra Institute of Physics, UMK Grudziądzka St. 5/7, 87-100 Toruń, Poland

DOI:

https://doi.org/10.5755/j01.eee.20.3.2788

Keywords:

Computer numerical control, control system synthesis, PI control, position control, servosystems

Abstract

Servo-drives have a significant influence on the tracking accuracy of numerically controlled machine tools. It is important to properly choose the structure and gains of a servo-drive control system. This paper presents a tuning method for position and velocity controllers of digital servo-drives. The proposed method allows the controllers’ gain values regardless of controller types (P, PI, PD or PID) to be determined. It takes into account a number of parameters relevant to practical applications, such as the shape of the position error signal and the resolution of the transducer used to measure the angular position of the motor shaft. The controller gains are determined for a parabolic position command signal. A comparison of the influence of both controllers’ types and feed-forward control types on tracking error is also presented.

DOI: http://dx.doi.org/10.5755/j01.eee.20.3.2788

Downloads

Published

2014-03-04

How to Cite

Mandra, S. (2014). Comparison of Automatically Tuned Cascade Control Systems of Servo-Drives for Numerically Controlled Machine Tools. Elektronika Ir Elektrotechnika, 20(3), 16-23. https://doi.org/10.5755/j01.eee.20.3.2788

Issue

Vol. 20 No. 3 (2014)

Section

AUTOMATION, ROBOTICS

License

The copyright for the paper in this journal is retained by the author(s) with the first publication right granted to the journal. The authors agree to the Creative Commons Attribution 4.0 (CC BY 4.0) agreement under which the paper in the Journal is licensed.

By virtue of their appearance in this open access journal, papers are free to use with proper attribution in educational and other non-commercial settings with an acknowledgement of the initial publication in the journal.