S5 – Integrated thickness and flatness control

Initial situation:

  • The regulations of the strip thickness and the strip planarity influence each other.
  • The planarity controller is artificially slowed down to reduce the band thickness disturbances.

Working topics:

  • Development of an integrated control concept for thickness and flatness control.
  • Development of an online plant model, Planeness and band thickness model validation.
  • Implementation of the scheme.

Results:

  • Planarity actuators operate at maximum speed, fast adjustment of planarity errors.
  • No undesirable cross-connections between flatness and thickness adjusters.
  • Lower thickness deviation over belt length.
  • High acceptance by the operator.
  • New regulation runs stable and reliable.

This project is funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union. Neither the European Union nor the granting authority can be held responsible for them.

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