Master's Thesis

Reglering av transportband

Carl Raskowski


This thesis investigates the possibility of improving level control in a buffer silo fed by a long conveyor belt at Stora Enso's industrial paper mill in Hyltebruk. The controller controlling the process has difficulties when the input to the conveyor belt stops since it takes at least 2.5 minutes for the empty belt segment to reach the buffer. Given relatively low quality level measurements a solution specically aimed at detecting and compensating for these holes, by selectively circumventing the ordinary controller, is described.

Master's Thesis ISRN LUTFD2/TFRT--5895--SE, Department of Automatic Control, Lund University, Sweden, May 2012.

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