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http://dx.doi.org/10.5302/J.ICROS.2015.15.0077

Motion Synchronization Algorithm using Sinusoidal Characteristics for a Dual-cylinder Mold Oscillator  

Kim, Seung Hun (Department of Electrical Engineering, POSTECH)
Choi, Doo Chul (Department of Electrical Engineering, POSTECH)
Kong, NamWoong (Technical Research Laboratories, POSCO)
Kim, Sang Woo (Department of Electrical Engineering and the Department of Creative IT Engineering, POSTECH)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.21, no.8, 2015 , pp. 729-734 More about this Journal
Abstract
Improvement in the control strategy for continuous casting is a crucial requirement to enhance the slab's quality and to increase productivity. The mold oscillator adopts the dual cylinders due to its heavy weight, so the synchronized motion of two cylinders is an important aspect when precise control is needed. The conventional method uses the master-slave control applied to the valve input reference, but the synchronization performance should still be improved. This paper proposes a novel synchronization algorithm for dual cylinders used in a mold oscillator. The master-slave concept is applied to the target reference position, that is, the slave target reference position is controlled to match the slave cylinder's position with the master cylinder's position. In the simulation based on a Simulink model, the proposed algorithm shows a better synchronization performance in aspect of the mean of the absolute error and the peak synchronization error.
Keywords
continuous casting; mold oscillator; sinusoidal oscillation; synchronization;
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