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基于参数自整定的ADRC-SMC钻进控制及其在防冲钻孔机器人中的应用

Parameter self-tuning ADRC-SMC drilling control and its application in anti-burst drilling robots

  • 摘要: 防冲钻孔机器人钻进控制是钻孔卸压作业与防治冲击地压的关键技术手段。目前,钻进系统的调控主要依赖人工操作,控制效果差且危险性高。结合钻进工作流程及各执行机构的工作特点,针对钻进过程中煤岩强度多变的特点,提出基于普氏系数的钻进最优参数;设计了结合自抗扰控制器(ADRC)的液压马达回转调速和基于滑模控制器(SMC)的液压油缸推进调速的钻进系统自适应控制策略,并开展了联合仿真分析及钻进工况智能模拟试验台测试。试验结果表明,在突变煤岩速度调控中,所提出的自适应控制策略的回转速度和推进速度的稳态平均误差分别为2.15 r/min、0.35 mm/s,最大动态误差分别为3.74 r/min、0.81 mm/s,相较于传统PID和Fuzzy-PID控制策略,该策略动态响应速度更快,稳态跟踪精度更高,可有效适配复杂钻进工况需求。

     

    Abstract: The drilling control of anti-burst drilling robots is a key technical method for achieving pressure relief and preventing rock burst hazards. Currently, the regulation of the drilling system primarily relies on manual operation, which leads to poor control performance and high safety risks. Therefore, based on the drilling workflow and the operating characteristics of various actuators, and addressing the highly variable hardness of coal and rock formations during the drilling process, this study proposes a method for determining optimal drilling parameters based on the Protodyakonov coefficient. An adaptive control strategy for the drilling system is designed, combining an active disturbance rejection controller (ADRC) for the rotational speed regulation of the hydraulic motor and a sliding mode controller (SMC) for the thrust speed regulation of the hydraulic cylinder. Additionally, co-simulation analysis and intelligent simulation test bench experiments under drilling conditions were conducted. The experimental results indicate that during speed regulation in abruptly changing coal and rock formations, the steady-state average errors of the rotational and thrust speeds under the proposed strategy were 2.15 r/min and 0.35 mm/s, respectively, with maximum dynamic errors of 3.74 r/min and 0.81 mm/s. Compared to traditional PID and Fuzzy-PID control strategies, the proposed approach demonstrates a faster dynamic response and superior steady-state tracking accuracy, effectively meeting the requirements of complex drilling operations.

     

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