Kun Fan
ADRC Based Multi-task Priority Tracking Control for Collaborative Robots
Fan, Kun; Liu, Yanhong; Zhang, Kuan; Bian, Guibin; Yu, Hongnian
Abstract
When collaborative robots perform multiple tracking tasks at the same time, the dynamics of each task will interact with each other. In addition, the uncertainty of robot model and external perturbation also limit the performance of the system. In order to tackle above problems, a task priority control framework combining ADRC and null space projection is proposed. First, by using the null-space projection, the new state variables which can realize the decoupling of task space inertia are obtained and the task space dynamics is inertially decoupled correspondingly. Then, by establishing the relationship between the new task state variables and the original task state variables, the task space dynamics represented by the original task state variables is got. Thirdly, based on the task space dynamics of each task, a ADRC controller is constructed to improve the tracking performance and disturbance attenuation property simultaneously. Simulation experiments on the UR5 robot verify the effectiveness of the proposed controller.
Citation
Fan, K., Liu, Y., Zhang, K., Bian, G., & Yu, H. (2022, August). ADRC Based Multi-task Priority Tracking Control for Collaborative Robots. Presented at CICAI 2022, Beijing
Presentation Conference Type | Conference Paper (published) |
---|---|
Conference Name | CICAI 2022 |
Start Date | Aug 27, 2022 |
End Date | Aug 28, 2022 |
Online Publication Date | Dec 17, 2022 |
Publication Date | 2022 |
Deposit Date | Feb 24, 2023 |
Publisher | Springer |
Pages | 439-450 |
Series Title | Lecture Notes in Computer Science |
Series Number | 13606 |
Book Title | Artificial Intelligence: Second CAAI International Conference, CICAI 2022, Beijing, China, August 27–28, 2022, Revised Selected Papers, Part III |
ISBN | 978-3-031-20502-6 |
DOI | https://doi.org/10.1007/978-3-031-20503-3_35 |
Keywords | Multi-task, Tracking control, Null space projection, Inertial decoupling of task space dynamics, ADRC |
Public URL | http://researchrepository.napier.ac.uk/Output/3033354 |
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