Title :
Model-based estimation of metal analysis in steel converters
Author :
Johansson, Andreas ; Medvedev, Alexander ; Widlund, Daniel
Author_Institution :
Control Eng. Group, Lulea Univ. of Technol., Sweden
Abstract :
A nonlinear observer is developed for metal analysis in the top blown converter process. It is shown that the observer is asymptotically stable and a region of attraction, where the estimation error converges, is derived. Using real plant data from the converter at SSAB Oxelosund AB, the observer is shown to provide accurate estimates of the carbon content
Keywords :
asymptotic stability; convergence; nonlinear systems; observers; steel industry; SSAB Oxelosund AB; asymptotically stable observer; attraction region; carbon content estimation; estimation error convergence; metal analysis; model-based estimation; nonlinear observer; steel converters; top blown converter process; Estimation error; Fuels; Iron; Manganese; Nonlinear systems; Production; Silicon; Slag; Stability; Steel;
Conference_Titel :
Decision and Control, 2000. Proceedings of the 39th IEEE Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6638-7
DOI :
10.1109/CDC.2000.914090
