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논문 기본 정보

자료유형
학술대회자료
저자정보
Yonggu Kim (POSTECH) Jinwook Seok (POSTECH) Ilhwan Noh (POSTECH) Sangchul Won (POSTECH)
저널정보
제어로봇시스템학회 제어로봇시스템학회 국제학술대회 논문집 ICCAS 2008
발행연도
2008.10
수록면
141 - 145 (5page)

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초록· 키워드

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In this paper, an adaptive disturbance observer based control algorithm is proposed for a two-link robot manipulator. The dynamics of the multi-body manipulator is coupled each link and highly nonlinear. So many sorts of robot manipulators have to be robust against internal and external variations in the work place. The disturbance observer has to solve those problems by estimating unknown states and rejecting decoupled terms between links. It is difficult to control worked robot manipulators because of changing many factors which are effect on the system especially such as the inertia moment of links in the robot manipulator. Conventional disturbance observer method ignoring some robot dynamics’factors was suggested to linearize the multi-body system. But this paper suggests that it makes the most use of some important factors of the dynamics that includes variable terms in the inertia moment of links. A suggested adaptive disturbance observer makes a more robust system against the excessive disturbance, namely payloads and external forces which are much bigger than inertia moment of each motor of links in the system, by updating the nominal inertia moment in the disturbance observer simultaneously. The effectiveness of the designed disturbance observer is investigated through the simulation results on the two-link robot manipulator.

목차

Abstract
1. INTRODUCTION
2. ROBOT MANIPULATOR
3. DISTURBANCE OBSERVER
4. NUMERICAL SIMULATION RESULT
5. CONCLUSION
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