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Time-Varying Sliding Mode Adaptive Control for Rotary Drilling System

机译:旋转钻井系统时变滑动模式自适应控制

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—This paper presents a time-varying sliding mode adaptive controller in order to handle the stick-slip oscillation of nonlinear rotary drilling system. The time-varying sliding mode controller with strong robust has two time-varying sliding surfaces, one of them induced time-varying integral sliding mode control can control the transient stage of the rotary drilling system and ensure the system remains the sliding condition whatever in usual or existing the parameter changes and disturbances to arrive at a controller capable of global stability. The herein developed controller is, a time-varying sliding mode adaptive controller has tracking performance and identification of drilling parameters. Lyapunov principles have been carried out to verify the stability and robustness of system. The simulation results show that the controller has faster dynamic responses and suppress stick-slip in oil well drill string, can achieve global stability of rotary drilling system.
机译:- 这篇论文呈现了一个时变的滑动模式自适应控制器,以处理非线性旋转钻井系统的粘滑振荡。具有强稳健的时变滑动模式控制器具有两个时变的滑动表面,其中一个诱导的时变整个滑动模式控制可以控制旋转钻井系统的瞬态级,并确保系统仍然是通常的滑动条件或者现有参数变化和干扰到达能够实现全局稳定性的控制器。这里开发的控制器是时变的滑模自适应控制器具有跟踪性能和钻孔参数的识别。 Lyapunov原则已经进行了验证系统的稳定性和稳健性。仿真结果表明,控制器具有更快的动力响应和抑制油井钻柱的粘滑,可以实现旋转钻井系统的全局稳定性。

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