J. Ferkl, L. Novotny, X. Beudaert, O. Franco, P. Kolar
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SIMULATION OF FEEDFORWARD CONTROL TECHNIQUES TO IMPROVE MACHINES FEED DRIVES TRACKING PERFORMANCE
High speed machines such as laser cutting machines should realize movements with high accelerations. Dynamical limitations of the feed drives are typically related to the bandwidth of the control loops and the excitation of mechanical structure. The objective of this article is to analyze the effect of feedforward control techniques on the individual axes tracking performance. Feed drive simulation model of increasing complexity is developed and valid relations between tracking performance and applied feedforward techniques are described. Consequently, this paper offers contribution in terms of feedforwards tuning, modelling and determination of achievable improvements and limitations.
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