Abstract
Regulating molten steel level in continuous casting is difficult because it suffers from various disturbances, among which the bulging disturbance is the most prominent. Moreover, as the casting speed increases in continuous casting, the phase lag due to the system delay increases. To eliminate the bulging disturbance in the presence of system delay, we propose an adaptive sine estimator based disturbance observer and a phase lead adaptive fuzzy controller. We tested the proposed method using a 1:1 scale hardware simulator and confirmed that the method successfully decreased the bulging disturbance effect from the molten steel level.
Original language | English |
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Pages (from-to) | 1022-1029 |
Number of pages | 8 |
Journal | Journal of Process Control |
Volume | 21 |
Issue number | 7 |
DOIs | |
State | Published - Aug 2011 |
Keywords
- Adaptive fuzzy controller
- Adaptive sine estimator
- Bulging disturbance
- Continuous casting
- Time-delay compensation