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Sliding Mode Control for Continuous Casting Mold Oscillatory System Driven by Servo Motor

Sheng-Li Shi, Ke-Song Kang, Jian-Xiong Li, Yi-Ming Fang*
International Journal of Control, Automation, and Systems, vol. 15, no. 4, pp.1669-1674, 2017

Abstract : "This paper develops an extended-state-observer-based sliding mode control strategy for continuous casting mold oscillatory system driven by servo motor in the presence of matched and mismatched disturbance. Extended state observers are employed to estimate the compound disturbances, and the requirement of the derivative of the compound disturbances to zero is avoided. In order to counteract the mismatched disturbance and attenuate the chattering phenomenon, a novel sliding surface based on extended state observer is designed for the system. Simulation results illustrate that the proposed controller can achieve better tracking performance and robustness to the compound disturbance."

Keyword : Continuous casting mold, extended state observer, mismatched disturbance, sliding mode control.

 
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