Abstract
System inversion is at the basis of many feedforward and learning control algorithms. This paper aims to analyze several of these approaches in view of their subsequent use, showing inappropriate use that is previously overlooked. This leads to new insights and approaches for both feedforward and learning. The methods are compared in various aspects, including finite vs. infinite preview, exact vs. approximate, and quality of inversion in various norms which directly relates to their use. The results are validated on a nonminimum-phase benchmark system.
Original language | English |
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Pages (from-to) | 12101-12106 |
Number of pages | 6 |
Journal | IFAC-PapersOnLine |
Volume | 50 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jul 2017 |
Event | 20th World Congress of the International Federation of Automatic Control (IFAC 2017 World Congress) - Toulouse, France Duration: 9 Jul 2017 → 14 Jul 2017 Conference number: 20 https://www.ifac2017.org/ |
Keywords
- Feedforward control
- ILC
- Model inversion
- Nonminimum phase