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The Smith Predictor Control of Argon-Bottom-Blowing Supply System with Time-Delay

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Abstract:

The process of Argon-bottom-blowing is widely used in steelmaking, Argon is used to stir molten steel fully and uniform the composition and temperature to improve the quality of molten steel. In this paper, Argon-bottom-blowing supply system is selected as the research object, there exits big delay because of the long gas pipeline. In order to overcome the adverse effect of time-delay, the reasonable Smith predictor is designed, which try to make PID regulator act in advance and reduce system overshoot amount. The simulation results show Smith predictor and PID controller are connected in parallel, the influence of time-delay can be eliminated and satisfactory control effect can be obtained.

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Periodical:

Applied Mechanics and Materials (Volumes 602-605)

Pages:

1383-1386

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.602-605.1383

Citation:

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Online since:

August 2014

Authors:

Li Hui Chen, Zhan Ping Huang, Wen Xia Du, Yan Rui Du*

Keywords:

Argon-Bottom-Blowing, Delay System, Smith Predictor

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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