Title: Extended pole placement method with non-causal reference model for digital servo-control
Authors: Chen, CH
Van Brussel, Hendrik
Swevers, Jan #
Issue Date: 31-Dec-1995
Publisher: ASME-AMER Soc Mechanical Eng
Series Title: Journal of Dynamic Systems Measurement and Control-Transactions of the ASME vol:117 issue:4 pages:641-644
Abstract: he extended pole placement (EPP) method extends the well-known pole placement method to digital servo-control with known control inputs. A servo-control system designed using the EPP method achieves an accurate command response through the use of a noncausal reference model and an accurate approximation of nonminimum-phase zeros. The phase error of the command response between the desired output and the actual output may be made arbitrarily small, while its gain extends uniformly to a selectable bandwidth. A selectable feedforward bandwidth is important in controlling flexible structures where unmodeled resonances might be excited by rough feedforward inputs. Experimental results on a machine tool slide show that a controller designed by the EPP method yields better servo performance for cornering and contour tracking tasks than an E-filter-enhanced zero phase error tracking controller.
ISSN: 0022-0434
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Production Engineering, Machine Design and Automation (PMA) Section
# (joint) last author

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