Dead-zone compensation via passivity-based control for a class of mechanical systems

 

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Autors: Chan Zheng, Carmen, Borja Rosales, Luis Pablo, Scherpen, Jacquelien M. A.
Data de publicació:2023
Descripció:This manuscript introduces a passivity-based control methodology for fully-actuated mechanical systems with symmetric or asymmetric dead-zones. To this end, we find a smooth approximation of the inverse of the function that describes such a nonlinearity. Then, we propose an energy and damping injection approach — based on the PI-PBC technique — that compensates for the dead-zone. Moreover, we provide an analysis of the performance of the proposed controller near the equilibrium. We conclude this paper by experimentally validating the results on a two degrees-of-freedom planar manipulator.
Pais:Kérwá
Institution:Universidad de Costa Rica
Repositorio:Kérwá
Idioma:Inglés
OAI Identifier:oai:kerwa.ucr.ac.cr:10669/105076
Accés en línia:https://hdl.handle.net/10669/105076
https://doi.org/10.1016/j.ifacol.2023.02.054
Paraula clau:Damping injection
Energy shaping
Passivity
Pid
Tuning