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The Research on Characteristics of Hydraulic Support Advancing Control System in Coal Mining Face

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Abstract

This paper researches the electro hydraulic control system of two-column shield hydraulic supports, takes the hydraulic support base advancing loop as the position servo control system, and studies its dynamic characteristics. It establishes the power amplifier, position sensor, hydraulic cylinder and loading mathematical model of the position servo control system, determines the model parameters of the advancing control system according to the shield hydraulic support used in the 1315 working face of GuoTun coal mine, and derives the opening loop transfer function of the valve controlled advancing cylinder. This paper also analyzes the stability of the control system of the advancing loop with the modern design method, and verifies the stability of the electro-hydraulic control system loop according to the simulation curve and the stability. By comparing with the valve core displacement and system flow curve while the system opening or closing, this paper explains the application effect of servo control system. It provides a new research idea and method for the study of the overall stability and effectively reduces the failure rate of electro-hydraulic control system of the hydraulic support. It also plays practical significance and value to improve the mining efficiency of the coal mining face.

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Acknowledgements

This paper is supported by the Qingdao Post-doctoral Researcher Applied Research Programs: “Control Technology Research on Coupling Relationship between Coal and Support Equipment for Thick Coal Seam Mining Face”.

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Authors and Affiliations

  1. College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qian Wangang Road No. 579, Qingdao, 266590, Shandong, China

    Lian-min Cao, Shi-jiao Sun, Ya-zhu Zhang, Hui Guo & Zhen Zhang

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  1. Lian-min Cao
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  2. Shi-jiao Sun
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  3. Ya-zhu Zhang
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  4. Hui Guo
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  5. Zhen Zhang
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Correspondence to Lian-min Cao.

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Cao, Lm., Sun, Sj., Zhang, Yz. et al. The Research on Characteristics of Hydraulic Support Advancing Control System in Coal Mining Face. Wireless Pers Commun 102, 2667–2680 (2018). https://doi.org/10.1007/s11277-018-5294-4

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  • DOI: https://doi.org/10.1007/s11277-018-5294-4

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