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Deterministic Convergence for Learning Control Systems Over Iteration-Dependent Tracking Intervals
DOI:10.1109/TNNLS.2017.2734843.png)
摘要
En 中文
This brief addresses the iterative learning control (ILC) problems for discrete-time systems subject to iteration-dependent tracking time intervals. A modified class of P-type ILC algorithms is proposed by properly defining an available modified output, for which robust convergence analysis is performed with an inductive approach. It is shown that if a persistent full-learning property is ensured, then a necessary and sufficient convergence condition of ILC can be derived to reach the perfect output tracking objective though the tracking time interval is iteration-dependent. That is, the tracking of ILC for iteration-dependent time intervals can be guaranteed in the same deterministic (not stochastic) convergence way as that of traditional ILC over a fixed time interval. Furthermore, the developed tracking results can be extended to admit iteration-dependent uncertainties in initial state and external disturbances. Simulation tests are also included to demonstrate the effectiveness of the modified P-type ILC.
Keyword:
Deterministic convergence
discrete-time systems
iteration-dependent uncertainty
iterative learning control (ILC)
persistent full learning
robust convergence
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8.9
论文数:
7.6K
被引数:
7.2W
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