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Basis functions and parameter optimisation in high-order iterative learning control

delete2006-02-01
delete56
PRE
AI
J
J. Hätönen
D
D.H. Owens
K
Kai Feng
DOI:10.1016/j.automatica.2005.05.025delete
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摘要

摘要

En 中文
In this paper a new parameter-optimal high-order Iterative Learning Control (ILC) algorithms is proposed to extend the work of Owens and Feng [Parameter optimisation in iterative learning control. International Journal of Control 14(11), 1059-1069]. If the original plant is positive, this new algorithm will result in convergent learning where the convergence is monotonic to zero tracking error. If the original plant is not positive, it can be shown that by adding a suitable set of basis functions into the algorithm, the tracking error will again converge monotonically to zero. This provides a considerable improvement to earlier work on parameter-optimal ILC as it opens up the possibility of globally convergent algorithms for any linear plant G. The number of parameters needed to ensure convergence could, however, become large. The paper shows that the use of low-order parameterisations is capable of achieving much of the benefit achieved in the 'ideal' case. (c) 2005 Elsevier Ltd. All rights reserved.
Keyword:
iterative learning control
parameter optimisation
basis functions
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期刊

Automatica 封面图
Automatica
IF:
5.9
论文数:
1.2W
被引数:
5.2W

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