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Automatic Control and Computer Sciences

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01-12-2023

Improved Sliding Mode Output Control of Mine Filling Slurry Concentration Based on Proportional-Integral Observer

Authors: Weiqiang Tang, Chaoyang Lu, Tianpeng Xu, Haiyan Gao

Published in: Automatic Control and Computer Sciences | Issue 6/2023

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Abstract

The accuracy of slurry concentration is an important guarantee for the quality of mine filling, and enhancing the robustness of the control system is an effective way to improve the accuracy. Based on sliding mode control, this study proposes a novel robust control method for the slurry concentration. Combined mechanism analysis and system response, the controller design model of a slurry preparation process is set up. An improved exponential reaching law with adaptive gain is developed and applied to the design of system controller. Additionally, a proportional-integral observer is used to estimate the state and disturbance of the system, and the disturbance is compensated by the design of the control law. The results demonstrate that the proposed closed-loop system has strong robustness and only measurable output is required for the implementation of the control law. At the same time, the accuracy of slurry concentration is greatly improved.

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Title: Improved Sliding Mode Output Control of Mine Filling Slurry Concentration Based on Proportional-Integral Observer
Authors: Weiqiang Tang
Chaoyang Lu
Tianpeng Xu
Haiyan Gao
Publication date: 01-12-2023
Publisher: Pleiades Publishing
Published in: Automatic Control and Computer Sciences / Issue 6/2023
Print ISSN: 0146-4116
Electronic ISSN: 1558-108X
DOI: https://doi.org/10.3103/S014641162306010X

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