Robust Trajectory Tracking of a Delta Robot Through Adaptive Active Disturbance Rejection Control

被引:131
作者
Angel Castaneda, Luis [1 ]
Luviano-Juarez, Alberto [1 ]
Chairez, Isaac [2 ]
机构
[1] Natl Polytech Inst, Interdisciplinary Profess Unit Engn & Adv Technol, Mexico City 07340, DF, Mexico
[2] Natl Polytech Inst, Profess Interdisciplinary Unit Biotechnol, Mexico City 07340, DF, Mexico
关键词
Active disturbance rejection control (ADRC); adaptive observers; Delta robot; parallel robots; position control; BUCK-CONVERTER; STABILIZATION; DYNAMICS; SYSTEM;
D O I
10.1109/TCST.2014.2367313
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper describes the adaptive control design to solve the trajectory tracking problem of a Delta robot with uncertain dynamical model. This robot is a fully actuated, parallel closed-chain device. The output-based adaptive control was designed within the active disturbance rejection framework. An adaptive nonparametric representation for the uncertain section of the robot model was obtained using an adaptive least mean squares procedure. The adaptive algorithm was designed without considering the velocity measurements of the robot joints. Therefore, a simultaneous observer-identifier scheme was the core of the control design. A set of experimental tests were developed to prove the performance of the algorithm presented in this paper. Some reference trajectories were proposed which were successfully tracked by the robot. In all the experiments, the adaptive scheme showed a better performance than the regular proportional-integral-derivative (PID) controller with feed-forward actions as well as a nonadaptive active disturbance rejection controller. A set of numerical simulations was developed to show that even under five times faster reference trajectories, the adaptive controller showed better results than the PID controller.
引用
收藏
页码:1387 / 1398
页数:12
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