Optimal design of open-and-close-loop PID-type ILC algorithm

Jinxue Xu; Lili Sun; Tianyou Cai

doi:10.1117/12.522077

2 September 2003 An optimal design of open-and-close-loop PID-type ILC algorithm

Jinxue Xu, Lili Sun, Tianyou Cai

Proceedings Volume 5253, Fifth International Symposium on Instrumentation and Control Technology; (2003) https://doi.org/10.1117/12.522077
Event: Fifth International Symposium on Instrumentation and Control Technology, 2003, Beijing, China

Abstract

Iterative learning control (ILC for short) is a simple and effective method for the control of systems that perform the same task repetitively. ILC algorithm uses the repetitiveness of the task to track the desired trajectory. In this paper, we assume that a measured finite impulse response series of the plant to be controlled are available. We propose an optimal design method of PID (proportional plus integral and derivative tracking error) type ILC update law, and a current cycle error assisted open ILC scheme is presented which is also called open and close loop PID type algorithm. By adding close loop scheme, the whole algorithm has better performance both in stability and convergence than the open loop one alone. The using of current iteration tracking error (CITE) also helps to get faster convergence rate. Furthermore, the effectiveness of the proposed method is illustrated by introducing some simulation experiments.

Citation Download Citation

Jinxue Xu, Lili Sun, and Tianyou Cai "An optimal design of open-and-close-loop PID-type ILC algorithm", Proc. SPIE 5253, Fifth International Symposium on Instrumentation and Control Technology, (2 September 2003); https://doi.org/10.1117/12.522077

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