Abstract
In this paper, we study the robust trajectory tracking problem for a class of nonlinear systems with incremental passivity. The velocity of the desired trajectory and parts of the model information are unknown apart from boundedness assumptions. A velocity observer based method and a sliding mode controller are proposed while the asymptotic tracking result is guaranteed by a zero-state detectability condition for both cases. Unlike previous results, the studied systems are not necessarily feedback linearizable nor in a strict feedback form. The ball and beam system is utilized to illustrate the implementation of the proposed tracking control laws. (C) 2019 Elsevier Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 595-599 |
Number of pages | 5 |
Journal | Automatica |
Volume | 107 |
DOIs | |
Publication status | Published - Sep-2019 |
Keywords
- Incremental passivity
- Trajectory tracking
- Robust control
- Port-Hamiltonian systems
- Asymptotic stability
- SLIDING-MODE CONTROL
- ROBOT
- MANIPULATORS
- BALL