Decentralized multi-loop auto-rolling controller for nonlinear large-scale roll-to-roll machines via velocity sensorless and tension loop adaptation approaches

Seok Kyoon Kim, Dong Soo Kim, Choon Ki Ahn

Research output: Contribution to journalArticlepeer-review

Abstract

This paper proposes a novel decentralized auto-rolling mechanism for nonlinear roll-to-roll printing machines, including loop adaptation tension regulators. The key contributions of this work to address the practical concerns pertaining to (a) model–plant mismatches, (b) decrease in the number of sensors, and (c) performance consistencies are summarized as follows: first, removal of web velocity loop dependency, improving auto-rolling control accuracy and lowering implementation costs without plant parameter value information [for concern (b)]; second, active damping velocity error stabilization with the closed-loop order reduction property and improved disturbance rejection capability using nonlinear disturbance observers [for concerns (a) and (c)];; and third, the online tension loop adaptation rule driven by the simple analytic form (transient performance improvement). The numerical simulation study verifies closed-loop effectiveness compared with the recent auto-rolling technique.

Original languageEnglish
Pages (from-to)341-354
Number of pages14
JournalNonlinear Dynamics
Volume111
Issue number1
DOIs
Publication statusPublished - 2023 Jan

Keywords

  • Nonlinear decentralized system
  • Printed electronics
  • Reverse offset
  • Roll printer
  • Velocity observer

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Aerospace Engineering
  • Ocean Engineering
  • Mechanical Engineering
  • Applied Mathematics
  • Electrical and Electronic Engineering

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