Observer-based critically damped feedback systems for nonlinear roll-to-roll printing machine applications under decentralized strategy

Seok Kyoon Kim, Dong Soo Kim, Choon Ki Ahn

Research output: Contribution to journalArticlepeer-review

Abstract

This article exhibits an advanced observer-based single-loop feedback system for roll-to-roll (R2R) machine tension control applications by treating the nonlinearities, parameter uncertainties, and closed-loop performance inconsistency as the main challenges. The proposed solution provides the three features as follows: (a) a critically damped web velocity feedback system governed by double integral control with active damping terms and a disturbance observer (DOB) through first-order pole–zero cancellation (PZC); (b) a model-free second-order PZC observer enabling feedback for the tension derivative information; (c) a combination of a proportional–integral (PI) controller, nonlinearly structured PI gains, active damping terms, and a DOB to assign critical damping performance to each tension loop through first-order PZC. The simulation results numerically validate the feasibility of the proposed solution.

Original languageEnglish
Pages (from-to)4343-4362
Number of pages20
JournalInternational Journal of Robust and Nonlinear Control
Volume34
Issue number6
DOIs
Publication statusPublished - 2024 Apr

Bibliographical note

Publisher Copyright:
© 2024 John Wiley & Sons Ltd.

Keywords

  • R2R printing machine
  • adaptive system
  • pole-zero cancellation
  • tension control

ASJC Scopus subject areas

  • Control and Systems Engineering
  • General Chemical Engineering
  • Biomedical Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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