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http://dx.doi.org/10.5391/JKIIS.2008.18.4.488

Fuzzy-PI controller for molten steel level of continuous casting process  

Joo, Moon-G. (부경대학교 전자컴퓨터정보통신공학부)
Kim, Do-E. (포스코특수강(주))
Kim, Ho-K. (포스코특수강(주))
Kim, Jong-M. (포스코특수강(주))
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.18, no.4, 2008 , pp. 488-493 More about this Journal
Abstract
A mathematical model of molten steel level for continuous casting process is presented, where the molten steel level, input and output flow in the mold, the relation between stopper position and input flow etc. are considered. The mathematical model is implemented and simulated by using MATLAB. Comparing the result of molten steel level from the simulator with that of real plant, the performance of the model is shown to be reasonable. By using this simulator, it is shown that PI controller with variable P gain, adjusted by fuzzy logic system, has better control result than conventional PI controller.
Keywords
Continuous casting modeling; Molten steel level control; Fuzzy-PI controller;
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