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Modelling and control of a flotation process
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
1999 (English)In: Control and optimization in minerals, metals and materials processing: proceedings of the International Symposium on Control and Optimization in Minerals, Metals and Materials Processing ; [part of the] 38th Annual Conference of Metallurgist of CIM, 38e Conférence Annuelle des Métallurgistes de l'ICM - [theme:] gateway to the 21st century - Aux portes du 21e siècle, August 22 - 26 Août, 1999, Québec City, Québec, Canada / [ed] D. Hodouin; C. Bazin; A. Desbiens, Montreal: MetSoc , 1999, 285-298 p.Conference paper (Refereed)
Abstract [en]

A general description of a flotation process is given. The dynamic model of a MIMO nonlinear subprocess in flotation, i.e. the pulp levels in five compartments in series is developed and the model is verified with real data from a production plant. In order to reject constant disturbances five extra states are introduced and the model is modified. An exact linearization has been made for the non-linear model and a linear quadratic Gaussian controller is proposed based on the linearized model. The simulation result shows an improved performance of the pulp level control when the set points are changed or a disturbance occur. In future the controller will be tested in production

Place, publisher, year, edition, pages
Montreal: MetSoc , 1999. 285-298 p.
Research subject
Control Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-34477Local ID: 8b0bea00-7d25-11df-ab16-000ea68e967bISBN: 0-919086-88-8OAI: oai:DiVA.org:ltu-34477DiVA: diva2:1007728
Conference
International Symposium on Control and Optimization in Minerals, Metals and Materials Processing : 22/08/1999 - 26/08/1999
Note
Godkänd; 1999; 20100621 (andbra)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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