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Experimentally verified 2D systems theory based robust iterative learning control

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6 Author(s)
Hladowski, L. ; Inst. of Control & Comput. Eng., Univ. of Zielona, Gora, Poland ; Galkowski, K. ; Zhonglun Cai ; Rogers, E.
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This paper uses 2D control systems theory to develop robust iterative learning control laws for linear plants with experimental validation on a gantry robot used for `pick and place' operations commonly found in industries such as food processing. In particular, the stability theory for linear repetitive processes provides the setting for analysis and this allows design to take account of trial-to-trial error convergence, transient response along the trials and robustness. The mechanism for this is the use of a strong form of stability for repetitive processes/2D linear systems known as stability along the pass (or trial) with the added requirement for maintaining this property in the presence of model uncertainty. The resulting design computations are in terms of Linear Matrix Inequalities (LMIs) and the control laws can be implemented without the need to estimate state vector entries.

Published in:

American Control Conference (ACC), 2010

Date of Conference:

June 30 2010-July 2 2010