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Proceedings Paper

Differential position feedback for compensating the tracking error in a motion control system
Author(s): Chen Juan; Dong ErBao; Chen Tao
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Paper Abstract

When a motion control system tracks a fast moving target, the over-tune is the main part of the dynamic tracking error. The speed delay compensation may be used to decrease the error but the stability is sacrificed. We put forward the Differential Position Feedback control, and discuss its effects and control mechanism through simulation. With transfer function identification, we find that the Differential Position Feedback(DPF) control is based on internal model principle. The simulation results show that DPF can improve the tracking ability for the fast moving target but lower the tracking precision at low frequency region. If it is combined with the dynamic integral control, better tracking precision can be obtained.

Paper Details

Date Published: 8 October 2007
PDF: 9 pages
Proc. SPIE 6719, Optomechatronic Systems Control III, 67190A (8 October 2007); doi: 10.1117/12.754599
Show Author Affiliations
Chen Juan, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Changchun Univ. of Technology (China)
Dong ErBao, China Science and Technology Univ. (China)
Chen Tao, Changchun Institute of Optics, Fine Mechanics and Physics (China)

Published in SPIE Proceedings Vol. 6719:
Optomechatronic Systems Control III
Sergej Fatikow; Farrokh Janabi-Sharifi; Toshio Fukuda; Hyungsuck Cho; Heikki N. Koivo, Editor(s)

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