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TECHNICAL BRIEFS

Adaptive Matching and Preview Controllers for Feed Drive Systems

[+] Author and Article Information
H. A. Pak

Department of Mechanical Engineering, University of Southern California, Los Angeles, CA 90089-1453

J. Dyn. Sys., Meas., Control 113(2), 316-320 (Jun 01, 1991) (5 pages) doi:10.1115/1.2896383 History: Received June 01, 1990; Online March 17, 2008

Abstract

The control scheme proposed aims to eliminate dynamic parameter mismatch between axes’ feed drives by using a single discrete time reference model of the feed drive speed regulation loop for all axes of a machine tool. In order to achieve this objective, the speed regulation loop for each axis is made adaptive using a direct approach. For contour tracking purposes, a preview feedforward controller (made possible through an N sample advanced reference word interpolator) is combined with a conventional state feedback control to form the input to the reference model.

Copyright © 1991 by The American Society of Mechanical Engineers
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