Control Method to Suppress Stick-slip in Drill-strings Featuring Actuation Delay and Constraints

James MacLean; Vahid Vaziri; Marian Wiercigroch; Sumeet S. Aphale

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Control Method to Suppress Stick-slip in Drill-strings Featuring Actuation Delay and Constraints

机译：控制方法抑制致动延迟和约束的钻轮中的钻杆滑动

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In this work, performance of a modified-integral resonant controller with integral tracking is investigated numerically under the effects of actuator delay and actuation constraints. Actuation delay and constraints naturally limit controller performance, so much so that it can cause instabilities. A 2-DOF drill-string with a nonlinear bit-rock interaction model is analysed. The aforementioned control scheme is implemented on this system and analysed under the effects of actuation delay and constraints and it is found to be highly effective at coping with these limitations. Lastly, the scheme is analysed in detail by varying its gains as well as varying system parameters, most notably that of actuation delay.

机译：在这项工作中，在致动器延迟和致动约束的影响下数值对改进的整体谐振控制器具有整体跟踪的性能。致动延迟和约束自然限制控制器性能，这就是可能导致稳定性。分析了具有非线性比特岩相互作用模型的2-DOF钻串。上述控制方案在该系统上实施，并根据致动延迟和约束的影响分析，发现它在应对这些限制时非常有效。最后，通过改变其增益以及不同的系统参数来详细分析该方案，最值得注于的致动延迟。

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《IFAC PapersOnLine》 |2021年第21期|共6页
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James MacLean; Vahid Vaziri; Marian Wiercigroch; Sumeet S. Aphale;
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Output feedback controlControl of constrained systemsDelay systemsTrackingParameter-varying systems;

机译：ConstrameStementsDelay SystemstrackingParameter-unice系统的输出反馈控制器;

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4. A model reference adaptive control based method for actuator delay estimation in real-time testing [J] . Cheng CHEN, James M.RICLES 结构与土木工程前沿：英文版 . 2010,第003期
5. Observer and reference governor based control strategy to suppress stick-slip vibrations in oil well drill-string [J] . Fu Meng, Zhang Ping, Li Jianghong, Journal of Sound and Vibration . 2019,第期

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Control Method to Suppress Stick-slip in Drill-strings Featuring Actuation Delay and Constraints

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