DocumentCode :
391278
Title :
Globally fully adaptive decentralized control of robot manipulators
Author :
Hsu, Su-Hau ; Fu, Li-Chen
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Volume :
2
fYear :
2002
fDate :
10-13 Dec. 2002
Firstpage :
1733
Abstract :
We develop a globally fully adaptive decentralized controller of a robot manipulator for trajectory tracking. With some nonlinear feedback terms, the proposed decentralized control law is guaranteed to drive the tracking error asymptotically to zero. Moreover, those nonlinear feedback terms not only improve the closed-loop property from semi-global stability to global stability but also make the position and velocity tracking errors approach to zero, which is a dual-goal hardly attained in the literature. The proposed adaptive law allows all signals in the closed-loop systems to be stabilized while making the tracking error converge to zero, even without any prior knowledge of the robot manipulator or the payload and the bound on the design trajectory so that the law can be claimed to be fully adaptive. Finally, a numerical study is provided to verify the effectiveness of the proposed scheme.
Keywords :
adaptive control; asymptotic stability; closed loop systems; decentralised control; feedback; manipulators; nonlinear control systems; position control; velocity control; closed-loop systems; global stability; globally fully adaptive decentralized control; nonlinear feedback terms; robot manipulators; semiglobal stability; tracking error; trajectory tracking; Adaptive control; Distributed control; Error correction; Feedback; Manipulators; Payloads; Programmable control; Robot control; Stability; Trajectory;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Decision and Control, 2002, Proceedings of the 41st IEEE Conference on
ISSN :
0191-2216
Print_ISBN :
0-7803-7516-5
Type :
conf
DOI :
10.1109/CDC.2002.1184772
Filename :
1184772
Link To Document :
بازگشت