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Optimization research of electrohydraulic proportional servo adjustment system for shearer drum based on linear active disturbance rejection control

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Abstract

In this paper, a linear active disturbance rejection control strategy (LADRC) aiming at the nonlinearity and load disturbance problems in electrohydraulic proportional servo system was proposed. The mathematical model of the electrohydraulic proportional servo system was established, and the LADRC controller that composed of LTD, LESO and LSEF was designed. The simulation analysis results revealed the LADRC controller has high anti-disturbance ability and tracking accuracy in different working conditions, such as no external disturbance, sudden external disturbance and multiple external disturbance, and the control performance was better than the traditional PID controller. When tracking the step signal with white noise and pulse width disturbance, the estimation accuracy of the LESO observer was slightly reduced, but it could still meet the requirements of the field operation tracking accuracy of the shearer automatic heightening system. Under the condition of system internal parameter perturbation, when the perturbation of physical parameters was less than 30%, LADRC showed strong robustness. LADRC in this study can effectively suppress the multi-source random uncertainty disturbance in the operation process of the roller height adjustment system, while realizing accurate track tracking of the destination cutting path.

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Data availability

The models of LADRC used to support the findings of this study are available from the corresponding author upon request. Meanwhile, all data used during the study appear in the submitted article.

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Acknowledgements

This research was financially supported by the National Natural Science Foundation of China (Grant no: 51475001) and Research and practice innovation program for Postgraduates in Jiangsu Province (Grant no: SJCX19_1032).

Funding

This study was funded by the National Natural Science Foundation of China, grant number: 51475001, and Research and Practice Innovation Program for Postgraduates in Jiangsu Province: grant number: SJCX19_1032.

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Authors and Affiliations

  1. School of Automotive Engineering, Yancheng Institute of Technology, Yancheng, 224051, China

    Haojie Gao, Rui Wang, Xin Xiong & Zhisong Wen

  2. Shanxi TZ Coal Mine Whole Set Equipment Company, Taiyuan, 030032, China

    Jingzhe Song

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  1. Haojie Gao
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  2. Rui Wang
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  3. Xin Xiong
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  4. Zhisong Wen
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Correspondence to Haojie Gao.

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Haojie Gao states that there is no conflict of interest.

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Gao, H., Wang, R., Xiong, X. et al. Optimization research of electrohydraulic proportional servo adjustment system for shearer drum based on linear active disturbance rejection control. Int. J. Dynam. Control 12, 1502–1511 (2024). https://doi.org/10.1007/s40435-023-01266-7

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