DocumentCode
1342204
Title
Detection of incipient clogging in pulverized coal injection lines
Author
Johansson, Andreas ; Medvedev, Alexander
Author_Institution
Control Eng. Group, Lulea Univ. of Technol., Sweden
Volume
36
Issue
3
fYear
2000
Firstpage
877
Lastpage
883
Abstract
This paper deals with the detection of clogging in the coal injection lines of a blast furnace. A physical model is developed and augmented with a signal that represents clogging. A nonlinear observer is proposed and shown to have any predefined convergence rate. An adaptive detection threshold scheme which is robust against time-varying uncertainties is employed. Simulations and experiments with real data are carried out to illustrate the usefulness of the methods
Keywords
coal; control system analysis; furnaces; materials handling; metallurgical industries; observers; process control; pulverised fuels; robust control; time-varying systems; adaptive detection threshold scheme; blast furnace process; convergence rate; incipient clogging detection; iron industry; nonlinear observer; physical model; pulverized coal injection lines; robustness; time-varying uncertainties; Automatic control; Blast furnaces; Control systems; Convergence; Fault detection; Helium; Industry Applications Society; Powders; Uncertainty; Valves;
fLanguage
English
Journal_Title
Industry Applications, IEEE Transactions on
Publisher
ieee
ISSN
0093-9994
Type
jour
DOI
10.1109/28.845065
Filename
845065
Link To Document