arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2212.07656eess.SYcs.SY
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受限空间多旋翼UAV的自适应反推混合增稳控制

Hybrid stability augmentation control of multi-rotor UAV in confined space based on adaptive backstepping control

QuanXi Zhan, JunRui Zhang, ChenYang Sun, RunJie Shen, Bin He

摘要:

本文将无人机应用于水电站引水管道的检测。导流管道是一个封闭的空间,因此无人机桨叶旋转引起的气流扰动和烟囱效应产生的强烈空气对流对无人机的飞行控制有很大的影响。传统的线性控制PID飞控算法虽然得到了广泛的应用,能够满足一般飞行任务的要求,但无法保证系统在大范围内的稳定性。在封闭空间内对导流管线进行检测,要求无人机控制器具有较高的系统稳定性和鲁棒性。本文提出了一种混合稳定自适应反推控制方法。首先对多旋翼无人机模型进行分析,并将其转化为具有外部扰动的严格反馈形式;然后采用自适应技术估计桨叶引起的气流扰动,分别采用反推控制和PID控制相结合的方法设计姿态和位置跟踪控制器;最后通过构造李雅普诺夫函数来保证系统的渐进稳定性。实验数据表明,本文设计的飞行控制器具有较好的鲁棒性和跟踪性能,能较好地抵抗受限空间气流扰动所带来的扰动。

英文摘要:

This paper applies the UAV to the inspection of water diversion pipelines in hydropower stations. The diversion pipeline is an enclosed space, so the airflow disturbance caused by the rotation of the UAV blades and the strong air convection from the chimney effect have a great impact on the flight control of the UAV. Although the traditional linear control PID flight control algorithm has been widely used and can meet the requirements of general flight tasks, it cannot guarantee the stability of the system over a wide range. The inspection of a diversion line in an enclosed space requires high system stability and robustness of the UAV controller. In this paper, a hybrid stabilised adaptive backstepping control method is proposed. Firstly, a multi-rotor UAV model is analysed and transformed into a strict feedback form with external disturbances; then adaptive techniques are used to estimate the airflow disturbances caused by the blades, and the attitude and position tracking controllers are designed by combining backstepping control and PID control respectively; finally, the asymptotic stability of the system is ensured by constructing a Lyapunov function. The experimental data show that the flight controller designed in this paper has good robustness and tracking performance, and can better resist the disturbance caused by airflow disturbance in confined space.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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