Abstract
Learning control enables significant performance improvement for systems that perform repeating tasks. Achieving high tracking performance by utilizing past error data typically requires noncausal learning that is based on a parametric model of the process. Such model-based approaches impose significant requirements on modeling and filter design. The aim of this paper is to reduce these requirements by developing a learning control framework that enables performance improvement through noncausal learning without relying on a parametric model. This is achieved by explicitly using the discrete Fourier transform to enable learning by using a nonparametric frequency response function model of the process. The effectiveness of the developed method is illustrated by application to a nanopositioning stage.
| Original language | English |
|---|---|
| Article number | 8777112 |
| Pages (from-to) | 2085-2096 |
| Number of pages | 12 |
| Journal | IEEE/ASME Transactions on Mechatronics |
| Volume | 24 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 Oct 2019 |
Funding
Manuscript received July 30, 2018; revised March 18, 2019; accepted July 10, 2019. Date of publication July 26, 2019; date of current version October 15, 2019. Recommended by Technical Editor Q. Zou. This work was supported in part by Océ Technologies and in part by the Netherlands Organization for Scientific Research through Research Program VIDI under Project 15698. (Corresponding author: Robin de Rozario.) R. de Rozario and T. Oomen are with the Faculty of Mechanical Engineering, Control Systems Technology, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands (e-mail:, [email protected]; [email protected]).
Keywords
- frequency response
- Iterative learning control
- motion control
- nanopositioning
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