Inverting Nonminimum-Phase Systems from the Perspectives of Feedforward and ILC * *This research is supported by the Dutch Technology Foundation STW, carried out as part of the Robust Cyber-Physical Systems (RCPS) project (no. 12694); and Innovational Research Incentives Scheme under the VENI grant 'Precision Motion: Beyond the Nanometer' (no. 13073) awarded by NWO (The Netherlands Organization for Scientific Research)

Autor: Tae Tom Oomen, Jcd Jurgen van Zundert
Rok vydání: 2017
Předmět:
Zdroj: IFAC-PapersOnLine. 50:12101-12106
ISSN: 2405-8963
DOI: 10.1016/j.ifacol.2017.08.2135
Popis: 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.
Databáze: OpenAIRE