arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2107.03056eess.SYcs.SY
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无速度测量的机器人位置约束自适应控制

Position Constrained, Adaptive Control of Robotic Manipulators without Velocity Measurements

Samet Gul, Erkan Zergeroglu, Enver Tatlicioglu

摘要:

本文提出了一种基于模型的、关节位置跟踪误差受限的自适应输出反馈控制器的设计和相应的稳定性分析。具体而言,假设初始关节位置跟踪误差在预定义区域内开始,所提出的控制器算法确保关节跟踪误差保持在该区域内并且渐近地接近于零,尽管缺乏与系统动态相关联的关节速度测量和不确定性。通过使用替代滤波器公式并结合使用所需的模型补偿,消除了对关节速度测量的需要。通过一个基于障碍李雅普诺夫函数的参数证明了闭环系统的稳定性和收敛性。最后以一个双连杆机器人为例进行了仿真,验证了该方法的可行性和有效性。

英文摘要:

This work presents the design and the corresponding stability analysis of a model based, joint position tracking error constrained, adaptive output feedback controller for robot manipulators. Specifically, provided that the initial joint position tracking error starts within a predefined region, the proposed controller algorithm ensures that the joint tracking error remains inside this region and asymptotically approaches to zero, despite the lack of joint velocity measurements and uncertainties associated with the system dynamics. The need for the joint velocity measurements are removed via the use of a surrogate filter formulation in conjunction with the use of desired model compensation. The stability and the convergence of the closed loop system are proved via a barrier Lyapunov function based argument. A simulation performed on a two-link robotic manipulator is provided in order to illustrate the feasibility and effectiveness of the proposed method.

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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