Nonlinear control of a simulated industrial evaporation process

✍ Scribed by L.C. To; M.O. Tadé; M. Kraetzl; G.P. Le Page

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 721 KB
• Volume: 5
• Category: Article
• ISSN: 0959-1524
• DOI: 10.1016/0959-1524(94)00001-s

✦ Synopsis

Three differential geometry based nonlinear control strategies, including input-output linearization, generic model control and Su-HunbMeyer transformation were studied on a simulation of the evaporation stage of the liquor burning process associated with the Bayer process for the production of alumina. The simulation was implemented using a symbolic algebraic software, Maple V.3. The overall results show that all three nonlinear strategies, especially the inpu~output linearization, provide better control performance than the classical linear control theory. A simplified solution algorithm for the Su-Hunt-Meyer transformation is proposed. A brief discussion on the industrial implementation of the nonlinear technology is also given.