Feedback control of the two-phase Stefan problem, with an application to the continuous casting of steel

Bryan Petrus, Joseph Bentsman, Brian G. Thomas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A full-state feedback control law is derived that stabilizes the two-phase Stefan problem with respect to a reference solution using control of the Neumann boundary condition. Stability and convergence are shown via a Lyapunov functional on the error system with moving boundaries. A second control law is also derived, for which stability is proved and convergence is conjectured due to the clearly convergent simulation results. A simple Dirichlet controller is also considered, and is used to design a boundary-output-based estimator that, in combination with full-state feedback controllers, yields a plausible output feedback control law with boundary sensing and actuation. The performance of the control laws is demonstrated using numerical simulation.

Original languageEnglish (US)
Title of host publication2010 49th IEEE Conference on Decision and Control, CDC 2010
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1731-1736
Number of pages6
ISBN (Print)9781424477456
DOIs
StatePublished - 2010
Event49th IEEE Conference on Decision and Control, CDC 2010 - Atlanta, United States
Duration: Dec 15 2010Dec 17 2010

Publication series

NameProceedings of the IEEE Conference on Decision and Control
ISSN (Print)0743-1546
ISSN (Electronic)2576-2370

Conference

Conference49th IEEE Conference on Decision and Control, CDC 2010
Country/TerritoryUnited States
CityAtlanta
Period12/15/1012/17/10

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Modeling and Simulation
  • Control and Optimization

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